Asterisk is an open source private branch exchange and telephony toolkit. Prior to Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3, an unbounded `memcpy` of `OGG/Speex` packet data in `format_ogg_speex` can cause a heap buffer overflow and crash Asterisk when reading a file containing corrupted Speex audio. The attacker must create the file and make it available to Asterisk either through sufficiently elevated privileges or by convincing an Asterisk administrator to make it available. Asterisk must also be configured to play that file. This issue is fixed in Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 5
- StatusPublished → Awaiting AnalysisNVD modified 2026-10-28 14:18
- StatusReceived → PublishedNVD modified 2026-10-27 16:35
- StatusPublished → ReceivedNVD modified 2026-10-27 17:17
- CVSS7.7 (v4.0, CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N) → 7.7 (v4.0, CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X)NVD modified 2026-10-27 17:17
- First seenCVSS 7.7 · asteriskNVD modified 2026-10-27 16:35
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 15
- https://github.com/asterisk/asterisk/commit/0a2c1d9e910f7c4dfffa05e328accb8a96990df8
- https://github.com/asterisk/asterisk/commit/0e6d761ed83f1671632c91805252767eae85e1a2
- https://github.com/asterisk/asterisk/commit/1cf189549994e0898954c814ce5a023cd969f1db
- https://github.com/asterisk/asterisk/commit/29026ece6fdd1834bb8f49c013ef163745ff2bbd
- https://github.com/asterisk/asterisk/commit/336ebe762bf6dfaf279796700de8ab51f7acd2f3
- https://github.com/asterisk/asterisk/commit/ccec146953b5e13043a36663af84e5a50ca633a6
- https://github.com/asterisk/asterisk/commit/dbcf38933866f0ddd023bc1814a78d4c750b0809
- https://github.com/asterisk/asterisk/releases/tag/20.20.1
- https://github.com/asterisk/asterisk/releases/tag/21.12.3
- https://github.com/asterisk/asterisk/releases/tag/22.10.1
- https://github.com/asterisk/asterisk/releases/tag/23.4.1
- https://github.com/asterisk/asterisk/releases/tag/certified-20.7-cert11
- https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3
- https://github.com/asterisk/asterisk/security/advisories/GHSA-8jhw-m2hg-vp3h
- https://github.com/asterisk/asterisk/tree/24.0.0-pre1