CVE-2026-57162

CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.1 under NVD CVSS v3. EPSS exploit probability: 0.6% (49th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
9.1EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 9.1Exploit: None knownExposed services: Not assessed

A fix is referenced (a reference tagged "Patch", often a source commit), but no release containing it is confirmed — find the release that contains it; until it is applied, mitigate (WAF / firewall / segmentation).

PJSIP is a free and open source multimedia communication library written in C. Prior to commit a1b707c, a stack buffer overflow exists in the SRTP/SDES media transport when processing a=crypto attributes during SDP offer/answer (sdes_encode_sdp() in transport_srtp_sdes.c). This affects applications with SRTP enabled (use_srtp optional or mandatory, using SDES keying). During media negotiation, the crypto attributes from the remote SDP are collected into a fixed-size array without bounding their number; a remote peer that includes an excessive number of a=crypto attributes in a single media description can write past the end of that array on the stack. This is reachable from an incoming SIP INVITE during offer/answer, before application-level authentication. Impact may range from unexpected application termination to control flow hijack/memory corruption. Applications that do not enable SRTP are not affected. This issue has been patched via commit a1b707c.

CVSS v3
9.1
EG Score
9.1CRITICALmedium confidence
EG Risk
56
EG Risk 56/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity91% × 45%
Exploitation1% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines at low or medium mission impact and sooner than that at high; until then, restrict network exposure of the affected system or apply the vendor's mitigation.
EPSS PROB
0.6%
EPSS %ILE
49th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines at low or medium mission impact and sooner than that at high; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 4, 2026

Last Modified

September 11, 2026

Advisory Details (2)

Auto-updated Sep 15, 2026
Fix referenced — no release confirmed yet. Sources: github_commit, github.
githubMentions a patch (unverified)

Stack overflow parsing SDP a=crypto attributes · Advisory · pjsip/pjproject · GitHub

https://github.com/pjsip/pjproject/security/advisories/GHSA-m9g3-jcj8-qjfm
github_commit

commit a1b707c0c9b0 (pjsip/pjproject)

Fix landed in pjsip/pjproject commit a1b707c0c9b0 — awaiting tagged release

https://github.com/pjsip/pjproject/commit/a1b707c0c9b0506faf2a8a438b60f11ffd6a6fd9

Affected Packages

(1 across 1 ecosystem)
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
asterisk0.1.11-3 ... 1:22.9.0+dfsg+~cs6.16.60671434-1 (296 versions)
  • every version on: no fix on record
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 12× in last 7d / 56× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-10-09 23:05 UTCEG score recompute
  2. 2026-10-09 20:07 UTCEPSS rescore
  3. 2026-10-09 01:09 UTCEG score recompute
  4. 2026-10-08 17:13 UTCEPSS rescore
  5. 2026-10-08 02:51 UTCEG score recompute
  6. 2026-10-07 23:48 UTCEPSS rescore
  7. 2026-10-06 16:24 UTCEG score recompute
  8. 2026-10-06 15:18 UTCEPSS rescore
  9. 2026-10-05 20:28 UTCEG score recompute
  10. 2026-10-05 17:43 UTCEPSS rescore
  11. 2026-10-04 23:33 UTCEG score recompute
  12. 2026-10-04 23:22 UTCEPSS rescore
  13. 2026-10-03 16:19 UTCEG score recompute
  14. 2026-10-03 14:26 UTCEPSS rescore
  15. 2026-10-02 21:32 UTCEG score recompute
  16. 2026-10-02 17:56 UTCEPSS rescore
  17. 2026-10-02 00:30 UTCEG score recompute
  18. 2026-10-01 19:50 UTCEPSS rescore
  19. 2026-09-30 15:26 UTCEG score recompute
  20. 2026-09-30 15:03 UTCEPSS rescore
  21. 2026-09-30 02:40 UTCEG score recompute
  22. 2026-09-29 15:22 UTCEPSS rescore
  23. 2026-09-28 23:02 UTCEG score recompute
  24. 2026-09-28 15:13 UTCEG score recompute
  25. 2026-09-28 13:51 UTCEPSS rescore
Show 44 more
  1. 2026-09-27 16:37 UTCEG score recompute
  2. 2026-09-27 13:48 UTCEPSS rescore
  3. 2026-09-26 17:05 UTCEG score recompute
  4. 2026-09-26 15:59 UTCEPSS rescore
  5. 2026-09-26 02:09 UTCEG score recompute
  6. 2026-09-24 15:19 UTCEG score recompute
  7. 2026-09-24 14:04 UTCEPSS rescore
  8. 2026-09-23 20:19 UTCEG score recompute
  9. 2026-09-23 17:54 UTCEPSS rescore
  10. 2026-09-22 17:56 UTCEG score recompute
  11. 2026-09-21 22:39 UTCEG score recompute
  12. 2026-09-20 23:48 UTCEG score recompute
  13. 2026-09-20 20:16 UTCEPSS rescore
  14. 2026-09-19 17:35 UTCEG score recompute
  15. 2026-09-18 22:43 UTCEG score recompute
  16. 2026-09-18 19:28 UTCEPSS rescore
  17. 2026-09-17 20:22 UTCEG score recompute
  18. 2026-09-17 19:31 UTCEPSS rescore
  19. 2026-09-16 18:23 UTCEG score recompute
  20. 2026-09-16 14:08 UTCEPSS rescore
  21. 2026-09-16 05:49 UTCEG score recompute
  22. 2026-09-16 05:15 UTCEPSS rescore
  23. 2026-09-15 03:18 UTCEG score recompute
  24. 2026-09-15 03:11 UTCEPSS rescore
  25. 2026-09-13 17:14 UTCEG score recompute
  26. 2026-09-13 16:47 UTCEPSS rescore
  27. 2026-09-12 18:37 UTCEG score recompute
  28. 2026-09-11 15:53 UTCEG score recompute▲ 0.30
  29. 2026-09-11 15:53 UTCNVD updateCVSS v3 → 9.1 · severity → CRITICAL
  30. 2026-09-11 14:53 UTCEPSS rescore
  31. 2026-09-11 10:45 UTCEG score recompute
  32. 2026-09-10 11:12 UTCEG score recompute
  33. 2026-09-10 09:35 UTCEPSS rescore
  34. 2026-09-09 09:35 UTCEG score recompute
  35. 2026-09-08 22:01 UTCEPSS rescore
  36. 2026-09-07 16:48 UTCEG score recompute
  37. 2026-09-07 16:01 UTCEPSS rescore
  38. 2026-09-06 17:24 UTCEG score recompute
  39. 2026-09-06 13:47 UTCEPSS rescore
  40. 2026-09-05 18:00 UTCEG score recompute
  41. 2026-09-04 18:35 UTCEG score recompute
  42. 2026-09-04 17:35 UTCEG score recompute
  43. 2026-09-04 17:20 UTCEG score recompute
  44. 2026-09-04 17:19 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-57162?
CVE-2026-57162 is a critical vulnerability published on September 4, 2026. PJSIP is a free and open source multimedia communication library written in C. Prior to commit a1b707c, a stack buffer overflow exists in the SRTP/SDES media transport when processing a=crypto attributes during SDP offer/answer (sdesencodesdp() in transportsrtpsdes.c). This affects applications…
When was CVE-2026-57162 disclosed?
CVE-2026-57162 was first published on September 4, 2026, with the most recent update on September 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-57162 actively exploited?
CVE-2026-57162 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (49th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-57162?
CVE-2026-57162 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-57162?
A fix for CVE-2026-57162 is referenced (a reference tagged "Patch", often a source commit), but EchelonGraph has no release containing it on record. Check that reference and the vendor's advisory for a release that contains the fix and update to it; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Dependency Blast Radius

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