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EPSS
| CVE | CVSS | EPSS | Vendor, product | Description | Modified |
|---|---|---|---|---|---|
| CVE-2024-6387exploit ×98 | 8.1 high | 100.0% | sonicwall, arista, sma_6200_firmware, sma_7200_firmware, eos | A security regression (CVE-2006-5051) was discovered in OpenSSH's server (sshd). There is a race condition which can lead sshd to handle some signals in an unsafe manner. An unauthenticated, remote attacker may be able to trigger it by failing to authenticate within a set time period. | 15 Oct |
| CVE-2023-48795exploit ×5 | 5.9 medium | 94.0% | openbsd, putty, openssh, filezilla_client | The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted (from the extension negotiation message), and a client and server may consequently end up with a connection for which some security features have been downgraded or disabled, aka a Terrapin attack. This occurs because the SSH Binary Packet Protocol (BPP), implemented by these extensions, mishandles the handshake phase and mishandles use of sequence numbers. For example, there is an effective attack against SSH's use of ChaCha20-Poly1305 (and CBC with Encrypt-then-MAC). The bypass occurs in [email protected] and (if CBC is used) the [email protected] MAC algorithms. This also affects Maverick Synergy Java SSH API before 3.1.0-SNAPSHOT, Dropbear through 2022.83, Ssh before 5.1.1 in Erlang/OTP, PuTTY before 0.80, AsyncSSH before 2.14.2, golang.org/x/crypto before 0.17.0, libssh before 0.10.6, libssh2 through 1.11.0, Thorn Tech SFTP Gateway before 3.4.6, Tera Term before 5.1, Paramiko before 3.4.0, jsch before 0.2.15, SFTPGo before 2.5.6, Netgate pfSense Plus through 23.09.1, Netgate pfSense CE through 2.7.2, HPN-SSH through 18.2.0, ProFTPD before 1.3.8b (and before 1.3.9rc2), ORYX CycloneSSH before 2.3.4, NetSarang XShell 7 before Build 0144, CrushFTP before 10.6.0, ConnectBot SSH library before 2.2.22, Apache MINA sshd through 2.11.0, sshj through 0.37.0, TinySSH through 20230101, trilead-ssh2 6401, LANCOM LCOS and LANconfig, FileZilla before 3.66.4, Nova before 11.8, PKIX-SSH before 14.4, SecureCRT before 9.4.3, Transmit5 before 5.10.4, Win32-OpenSSH before 9.5.0.0p1-Beta, WinSCP before 6.2.2, Bitvise SSH Server before 9.32, Bitvise SSH Client before 9.33, KiTTY through 0.76.1.13, the net-ssh gem 7.2.0 for Ruby, the mscdex ssh2 module before 1.15.0 for Node.js, the thrussh library before 0.35.1 for Rust, and the Russh crate before 0.40.2 for Rust. | 15 Oct |
| CVE-2023-25136exploit ×11 | 6.5 medium | 90.0% | openbsd, fedoraproject, openssh, fedora, ontap_select_deploy_administration_utility | OpenSSH server (sshd) 9.1 introduced a double-free vulnerability during options.kex_algorithms handling. This is fixed in OpenSSH 9.2. The double free can be leveraged, by an unauthenticated remote attacker in the default configuration, to jump to any location in the sshd address space. One third-party report states "remote code execution is theoretically possible." | 14 Oct |
| CVE-2023-38408exploit ×10 | 9.8 critical | 80.0% | openbsd, fedoraproject, openssh, fedora | The PKCS#11 feature in ssh-agent in OpenSSH before 9.3p2 has an insufficiently trustworthy search path, leading to remote code execution if an agent is forwarded to an attacker-controlled system. (Code in /usr/lib is not necessarily safe for loading into ssh-agent.) NOTE: this issue exists because of an incomplete fix for CVE-2016-10009. | 15 Oct |
| CVE-2019-6111exploit ×4 | 5.9 medium | 58.0% | openbsd, winscp, openssh, ubuntu_linux | An issue was discovered in OpenSSH 7.9. Due to the scp implementation being derived from 1983 rcp, the server chooses which files/directories are sent to the client. However, the scp client only performs cursory validation of the object name returned (only directory traversal attacks are prevented). A malicious scp server (or Man-in-The-Middle attacker) can overwrite arbitrary files in the scp client target directory. If recursive operation (-r) is performed, the server can manipulate subdirectories as well (for example, to overwrite the .ssh/authorized_keys file). | 14 Oct |
| CVE-2025-26466exploit ×5 | 5.9 medium | 39.0% | openbsd, canonical, openssh, ubuntu_linux, debian_linux | A flaw was found in the OpenSSH package. For each ping packet the SSH server receives, a pong packet is allocated in a memory buffer and stored in a queue of packages. It is only freed when the server/client key exchange has finished. A malicious client may keep sending such packages, leading to an uncontrolled increase in memory consumption on the server side. Consequently, the server may become unavailable, resulting in a denial of service attack. | 21 Oct |
| CVE-2019-6110exploit ×2 | 6.8 medium | 25.0% | openbsd, winscp, openssh, element_software | In OpenSSH 7.9, due to accepting and displaying arbitrary stderr output from the server, a malicious server (or Man-in-The-Middle attacker) can manipulate the client output, for example to use ANSI control codes to hide additional files being transferred. | 14 Oct |
| CVE-2023-51385exploit ×23 | 6.5 medium | 20.0% | openbsd, debian, openssh, debian_linux | In ssh in OpenSSH before 9.6, OS command injection might occur if a user name or host name has shell metacharacters, and this name is referenced by an expansion token in certain situations. For example, an untrusted Git repository can have a submodule with shell metacharacters in a user name or host name. | 15 Oct |
| CVE-2020-15778exploit ×4 | 7.4 high | 14.0% | openbsd, netapp, openssh, a700s_firmware, active_iq_unified_manager | scp in OpenSSH through 8.3p1 allows command injection in the scp.c toremote function, as demonstrated by backtick characters in the destination argument. NOTE: the vendor reportedly has stated that they intentionally omit validation of "anomalous argument transfers" because that could "stand a great chance of breaking existing workflows." | 14 Oct |
| CVE-2025-26465exploit ×2 | 6.8 medium | 8.0% | openbsd, netapp, openssh, active_iq_unified_manager, ontap | A vulnerability was found in OpenSSH when the VerifyHostKeyDNS option is enabled. A machine-in-the-middle attack can be performed by a malicious machine impersonating a legit server. This issue occurs due to how OpenSSH mishandles error codes in specific conditions when verifying the host key. For an attack to be considered successful, the attacker needs to manage to exhaust the client's memory resource first, turning the attack complexity high. | 21 Oct |
| CVE-2021-41617exploit | 7.0 high | 3.0% | openbsd, fedoraproject, openssh, fedora, active_iq_unified_manager | sshd in OpenSSH 6.2 through 8.x before 8.8, when certain non-default configurations are used, allows privilege escalation because supplemental groups are not initialized as expected. Helper programs for AuthorizedKeysCommand and AuthorizedPrincipalsCommand may run with privileges associated with group memberships of the sshd process, if the configuration specifies running the command as a different user. | 14 Oct |
| CVE-2021-28041 | 7.1 high | 4.0% | openbsd, fedoraproject, openssh, fedora, cloud_backup | ssh-agent in OpenSSH before 8.5 has a double free that may be relevant in a few less-common scenarios, such as unconstrained agent-socket access on a legacy operating system, or the forwarding of an agent to an attacker-controlled host. | 14 Oct |
| CVE-2019-6109 | 6.8 medium | 4.0% | openbsd, winscp, openssh, ubuntu_linux | An issue was discovered in OpenSSH 7.9. Due to missing character encoding in the progress display, a malicious server (or Man-in-The-Middle attacker) can employ crafted object names to manipulate the client output, e.g., by using ANSI control codes to hide additional files being transferred. This affects refresh_progress_meter() in progressmeter.c. | 14 Oct |
| CVE-2023-28531 | 9.8 critical | 3.0% | openbsd, netapp, openssh, brocade_fabric_operating_system, hci_bootstrap_os | ssh-add in OpenSSH before 9.3 adds smartcard keys to ssh-agent without the intended per-hop destination constraints. The earliest affected version is 8.9. | 14 Oct |
| CVE-2020-14145 | 5.9 medium | 3.0% | openbsd, netapp, openssh, aff_a700s_firmware, active_iq_unified_manager | The client side in OpenSSH 5.7 through 8.4 has an Observable Discrepancy leading to an information leak in the algorithm negotiation. This allows man-in-the-middle attackers to target initial connection attempts (where no host key for the server has been cached by the client). NOTE: some reports state that 8.5 and 8.6 are also affected. | 14 Oct |
| CVE-2019-16905 | 7.8 high | 2.0% | openbsd, netapp, openssh, cloud_backup, steelstore_cloud_integrated_storage | OpenSSH 7.7 through 7.9 and 8.x before 8.1, when compiled with an experimental key type, has a pre-authentication integer overflow if a client or server is configured to use a crafted XMSS key. This leads to memory corruption and local code execution because of an error in the XMSS key parsing algorithm. NOTE: the XMSS implementation is considered experimental in all released OpenSSH versions, and there is no supported way to enable it when building portable OpenSSH. | 14 Oct |
| CVE-2020-12062 | 7.5 high | 2.0% | openbsd, openssh | The scp client in OpenSSH 8.2 incorrectly sends duplicate responses to the server upon a utimes system call failure, which allows a malicious unprivileged user on the remote server to overwrite arbitrary files in the client's download directory by creating a crafted subdirectory anywhere on the remote server. The victim must use the command scp -rp to download a file hierarchy containing, anywhere inside, this crafted subdirectory. NOTE: the vendor points out that "this attack can achieve no more than a hostile peer is already able to achieve within the scp protocol" and "utimes does not fail under normal circumstances. | 14 Oct |
| CVE-2026-3497 | 6.9 medium | 2.0% | canonical, openbsd, ubuntu_linux, openssh, debian_linux | Vulnerability in the OpenSSH GSSAPI delta included in various Linux distributions. This vulnerability affects the GSSAPI patches added by various Linux distributions and does not affect the OpenSSH upstream project itself. The usage of sshpkt_disconnect() on an error, which does not terminate the process, allows an attacker to send an unexpected GSSAPI message type during the GSSAPI key exchange to the server, which will call the underlying function and continue the execution of the program without setting the related connection variables. As the variables are not initialized to NULL the code later accesses those uninitialized variables, accessing random memory, which could lead to undefined behavior. The recommended workaround is to use ssh_packet_disconnect() instead, which does terminate the process. The impact of the vulnerability depends heavily on the compiler flag hardening configuration. | 15 Oct |
| CVE-2026-60000 | 7.5 high | 1.0% | openbsd, openssh | sshd in OpenSSH before 10.4 allows remote attackers to cause a denial of service (resource consumption from excessive authentication attempts) because MaxAuthTries was mishandled for GSSAPIAuthentication. | Sun 25 Oct |
| CVE-2023-51767 | 7.0 high | 1.0% | openbsd, fedoraproject, openssh, fedora, enterprise_linux | OpenSSH through 10.0, when common types of DRAM are used, might allow row hammer attacks (for authentication bypass) because the integer value of authenticated in mm_answer_authpassword does not resist flips of a single bit. NOTE: this is applicable to a certain threat model of attacker-victim co-location in which the attacker has user privileges. NOTE: this is disputed by the Supplier, who states "we do not consider it to be the application's responsibility to defend against platform architectural weaknesses." | 15 Oct |
| CVE-2026-56099 | 6.9 medium | 1.0% | openbsd | OpenBSD before commit 6a23123 (2026-06-18) contains an out-of-bounds read vulnerability in the mpls_do_error function within sys/netmpls/mpls_input.c that allows remote attackers to disclose kernel stack memory by sending crafted MPLS frames with 16 labels and no Bottom-of-Stack bit set. | Mon 26 Oct |
| CVE-2026-55653 | 6.5 medium | 1.0% | openbsd, redhat, openssh, hardened_images, openshift_container_platform | A flaw was found in OpenSSH. A malicious SSH server can exploit a double free vulnerability in the Diffie-Hellman Group Exchange (DH-GEX) client path. This occurs during FIPS (Federal Information Processing Standards) mode known-group validation when the client processes attacker-controlled DH-GEX group parameters. Successful exploitation leads to client-side process termination, resulting in a Denial of Service (DoS). | Mon 26 Oct |
| CVE-2026-56101 | 6.0 medium | 1.0% | openbsd | OpenBSD before commit 1ee99df contains an inverted comparison vulnerability in the ieee80211_michael_mic_failure() function within sys/net80211/ieee80211_crypto_tkip.c that allows unauthenticated attackers within RF range to trigger denial of service by sending two malformed TKIP frames separated by more than 60 seconds. Attackers can exploit the reversed TKIP MIC failure countermeasure window check to deauthenticate all associated TKIP stations and block reassociation for up to 90 seconds, while within-window MIC failures that should engage countermeasures are silently discarded, leaving key-recovery attempts undetected. | Tue 27 Oct |
| CVE-2026-60002 | 9.4 critical | 0.00% | openbsd, openssh | ssh in OpenSSH before 10.4 can have a use-after-free when a server changes its host key during a key re-exchange. (This outcome occurs only on the client side.) | Sun 25 Oct |
| CVE-2026-106583 | 7.8 high | 0.00% | openbsd, openssh | In ssh in OpenSSH before 10.6, a $ or \ character can occur in a command-line username, leading to injection. | 15 Oct |
| CVE-2026-59999 | 7.5 high | 0.00% | openbsd, openssh | In sshd in OpenSSH before 10.4, DisableForwarding=yes was supposed to take precedence over PermitTunnel=yes, but did not. | Sun 25 Oct |
| CVE-2026-106553 | 7.5 high | 0.00% | openbsd, openssh | In sshd in OpenSSH before 10.6, credentials can incorrectly persist after failure of a GSSAPIAuthentication authentication attempt. | 13 Oct |
| CVE-2026-106555 | 7.5 high | 0.00% | openbsd, openssh | In sshd in OpenSSH before 10.6, GSSAPIAuthentication authentication state can incorrectly be persisted across authentication attempts. | 13 Oct |
| CVE-2026-116674 | 6.5 medium | 0.00% | no CPE yet | systeminformation is a System and OS information library for node.js. Prior to 5.33.13, networkStats(ifaces) in lib/network.js on FreeBSD, OpenBSD, and NetBSD stores per-interface data in the plain-object _network cache and indexes it with the sanitized caller-controlled interface name. Passing proto causes the inherited Object.prototype value to be used instead of creating an own cache entry, so calcNetworkSpeed() writes rx_bytes, tx_bytes, rx_sec, tx_sec, ms, last_ms, and operstate onto Object.prototype. The polluted property names are fixed and their values come from interface statistics, but inherited-name collisions and enumerable keys can corrupt application branching, serialization, configuration merging, validation, or lookup behavior. This issue is fixed in version 5.33.13. | Tue 27 Oct |
| CVE-2026-59998 | 6.5 medium | 0.00% | openbsd, openssh | sshd in OpenSSH before 10.4 has an undocumented security-relevant behavior: GSSAPIStrictAcceptorCheck has no value if the server is in Windows Active Directory. | Sun 25 Oct |
| CVE-2026-60001 | 6.5 medium | 0.00% | openbsd, openssh | sshd in OpenSSH before 10.4 does not always honor the minimum authentication delay. | Sun 25 Oct |
| CVE-2026-106585 | 6.5 medium | 0.00% | openbsd, openssh | In sshd and ssh in OpenSSH before 10.6, there is no check for whether the maximum packet length is exceeded during decompression of highly compressed data. | 15 Oct |
| CVE-2026-106552 | 6.5 medium | 0.00% | openbsd, openssh | In sftp in OpenSSH before 10.6, a server can trigger directory traversal (causing files to be written to unintended locations) during a recursive copy operation. | 13 Oct |
| CVE-2026-55655 | 6.1 medium | 0.00% | openbsd, redhat, openssh, enterprise_linux | A flaw was found in OpenSSH. A local unprivileged attacker on a Linux client host can hijack client-side X11 forwarding connections. This is possible by pre-binding the preferred abstract X socket name when X11 forwarding is enabled and a local UNIX-domain X socket is used. A successful attack can compromise the confidentiality of forwarded X11 traffic, including sensitive window contents and input, and may allow some manipulation of the forwarded session. | Mon 26 Oct |
| CVE-2023-51384 | 5.5 medium | 0.00% | openbsd, debian, openssh, debian_linux | In ssh-agent in OpenSSH before 9.6, certain destination constraints can be incompletely applied. When destination constraints are specified during addition of PKCS#11-hosted private keys, these constraints are only applied to the first key, even if a PKCS#11 token returns multiple keys. | 15 Oct |
| CVE-2026-59995 | 5.4 medium | 0.00% | openbsd, openssh | sftp in OpenSSH before 10.4 does not properly constrain the location of downloaded files when "sftp server:/path ." is used with an attacker-controlled server. | Sun 25 Oct |
| CVE-2026-59996 | 5.4 medium | 0.00% | openbsd, openssh | scp in OpenSSH before 10.4 may place a file in the parent directory of an intended directory when the copy occurs between two remote destinations. | Sun 25 Oct |
| CVE-2026-59997 | 5.4 medium | 0.00% | openbsd, openssh | internal-sftp in sshd in OpenSSH before 10.4 recognizes only the first 9 command-line arguments, which can be important if a later command-line argument would have helped to ensure the intended security properties of an SFTP connection. | Sun 25 Oct |
| CVE-2026-73282 | 4.8 medium | 0.00% | openbsd, openssh | In ssh in OpenSSH before 10.5, a use-after-free for realloc data can occur if a certain pair of remote-forwarding operations are concurrent. | Sat 24 Oct |
| CVE-2026-106586 | 4.3 medium | 0.00% | openbsd, openssh | In sshd in OpenSSH before 10.6, the restrict keyword (in authorized_keys) was supposed to be applicable to tunnel forwarding but was not, a different vulnerability than CVE-2026-73283. | 13 Oct |
| CVE-2025-32728 | 3.8 low | 0.00% | openbsd, debian, openssh, debian_linux | In sshd in OpenSSH before 10.0, the DisableForwarding directive does not adhere to the documentation stating that it disables X11 and agent forwarding. | 15 Oct |
| CVE-2026-106582 | 3.7 low | 0.00% | openbsd, openssh | In sshd and ssh in OpenSSH before 10.6, an LZ77 dictionary coder can be used even though this is contraindicated by the arXiv 2609.07709 "Crossing the Streams" findings. | 13 Oct |
| CVE-2026-73281 | 3.5 low | 0.00% | openbsd, openssh | In ssh-agent in OpenSSH before 10.5, some operations can occur remotely but were intended to occur only locally, including operations that add tokens or use keys. This is caused by misinteraction between agent locking and the [email protected] extension. | Sat 24 Oct |
| CVE-2026-106584 | 3.3 low | 0.00% | openbsd, openssh | In ssh-keygen in OpenSSH before 10.6, certificates could have incorrect expiration times because of Daylight Saving mishandling. There can be a slightly more severe effect on users in certain Antarctic locations. | 13 Oct |
| CVE-2026-106587 | 3.3 low | 0.00% | openbsd, openssh | In sshd in OpenSSH before 10.6, the value "none" for a configuration option is sometimes interpreted as a filename but was intended to mean that a feature is disabled. | 9 Oct |
| CVE-2026-73283 | 2.5 low | 0.00% | openbsd, openssh | In sshd in OpenSSH before 10.5, the restrict keyword (in authorized_keys) was supposed to be applicable to tunnel forwarding but was not. | Sat 24 Oct |
| CVE-2023-53715 | unscored | 0.00% | no CPE yet | In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: cfg80211: Pass the PMK in binary instead of hex Apparently the hex passphrase mechanism does not work on newer chips/firmware (e.g. BCM4387). It seems there was a simple way of passing it in binary all along, so use that and avoid the hexification. OpenBSD has been doing it like this from the beginning, so this should work on all chips. Also clear the structure before setting the PMK. This was leaking uninitialized stack contents to the device. | 12 h ago |
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EPSS scores: 2026-10-28. NVD cursor: 2026-10-29 00:22. The News page shows only notable CVEs (KEV, your stack, new criticals, EPSS over 50%, or active exploitation per SSVC); this table has all of them.