FreeRDP from 3.9.0 before 3.32.0 contains an out-of-bounds read vulnerability in the RDPEAR NDR scalar readers, which check value length before consuming alignment padding. Malicious or compromised RDP servers can send crafted unaligned RDPEAR payloads, such as CreateApReqAuthenticatorReq messages, to clients using Remote Credential Guard, causing over-reads and potentially crashing the client process.
Fix
STIG rules that mitigate this class
Credential Guard isolates NTLM hashes and Kerberos tickets from the LSASS process the class of flaw reads. Microsoft Learn, "Credential Guard overview" (the owner's mapping, data/mitigations.yaml: credential-guard)
- WN11-CC-000075 CAT I Credential Guard must be running on Windows 11 systems. Microsoft Windows 11
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 6.0NVD modified 2026-10-13 20:39
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.