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CVE-2026-57189

2.3 low SSVC exploitation: none Published
NVD · CVE.org

Asterisk is an open source private branch exchange and telephony toolkit. In affected deployments, an authenticated attacker may cause a `T.140 RED` out-of-bounds write during `generation accumulation` using carefully crafted packets, potentially allowing remote code execution or causing Asterisk to crash. The `chan_sip` channel driver must be installed and configured, and its `textsupport` option must be enabled; `textsupport` defaults to no. `The chan_sip driver was deprecated in Asterisk 20 and completely removed in all later versions.` Repository comparisons verify patch containment in Asterisk 20.20.1, 21.12.3, 22.10.1 and 23.4.1, and Certified Asterisk 20.7-cert11 and 22.8-cert3. The affected release-track scope remains unresolved: structured metadata includes later release tracks even though the advisory says the required `chan_sip` driver was removed there.

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 8

  1. StatusAwaiting Analysis → PublishedNVD modified 2026-10-28 16:14
  2. StatusPublished → Awaiting AnalysisNVD modified 2026-10-28 17:18
  3. StatusAwaiting Analysis → PublishedNVD modified 2026-10-28 16:14
  4. StatusPublished → Awaiting AnalysisNVD modified 2026-10-28 14:18
  5. StatusReceived → PublishedNVD modified 2026-10-27 16:59
  6. StatusPublished → ReceivedNVD modified 2026-10-27 17:17
  7. CVSS2.3 (v4.0, CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N) → 2.3 (v4.0, CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:L/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
  8. First seenCVSS 2.3 · asteriskNVD modified 2026-10-27 16:59

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 15