CVE-2026-57159

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 72% of all CVEs by exploit prediction. 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
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

PJSIP is a free and open source multimedia communication library written in C. Prior to commit 673b978, a remote out-of-bounds read and write can occur in the SDP negotiator when the remote payload-type map maintenance feature is enabled. assign_pt_and_update_map() in pjmedia/src/pjmedia/sdp_neg.c uses payload-type numbers taken from a remote SDP offer or answer to index fixed-size internal tables without sufficient bounds validation, so a crafted remote SDP can cause memory access outside those tables. The practical impact is memory corruption and denial of service; code execution is not demonstrated. This path is only reached when PJMEDIA_SDP_NEG_MAINTAIN_REMOTE_PT_MAP is enabled. The default is disabled, so default builds are not affected; the feature is an interoperability option that integrating products may enable. This issue has been patched via commit 673b978.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: Track

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
Severity75% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
28%
KEV
Not listed

Published

September 4, 2026

Last Modified

September 11, 2026

Advisory Details (2)

Auto-updated Sep 4, 2026
Patch available. Sources: github, github_commit.
github_commit

commit 673b978aab1f (pjsip/pjproject)

Fix landed in pjsip/pjproject commit 673b978aab1f — awaiting tagged release

https://github.com/pjsip/pjproject/commit/673b978aab1fe3ab874247be32c871acc880cbeb
github Patch Available

SDP parser out-of-bounds write in remote payload-type map maintenance · Advisory · pjsip/pjproject · GitHub

https://github.com/pjsip/pjproject/security/advisories/GHSA-rfwg-w9gq-9mw2

Affected Packages

(1 across 1 ecosystem)
Debian:14(1)
PackageVulnerable rangeFixed inDependents
asterisk0.1.11-3 ... 1:22.9.0+dfsg+~cs6.16.60671434-1 (296 versions)——

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 29× 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. 2026-09-19 20:55 UTCEG score recompute
  2. 2026-09-19 07:45 UTCEG score recompute
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 05:22 UTCEG score recompute
  5. 2026-09-17 19:31 UTCEPSS rescore
  6. 2026-09-17 03:05 UTCEG score recompute
  7. 2026-09-16 14:08 UTCEPSS rescore
  8. 2026-09-16 13:57 UTCEG score recompute
  9. 2026-09-16 05:15 UTCEPSS rescore
  10. 2026-09-15 11:33 UTCEG score recompute
  11. 2026-09-15 03:11 UTCEPSS rescore
  12. 2026-09-13 20:07 UTCEG score recompute
  13. 2026-09-13 16:47 UTCEPSS rescore
  14. 2026-09-12 17:50 UTCEG score recompute
  15. 2026-09-11 15:33 UTCEG score recompute▼ 0.90
  16. 2026-09-11 15:32 UTCNVD updateCVSS v3 → 7.5
  17. 2026-09-11 14:53 UTCEPSS rescore
  18. 2026-09-10 13:23 UTCEG score recompute
  19. 2026-09-10 09:35 UTCEPSS rescore
  20. 2026-09-09 11:02 UTCEG score recompute
  21. 2026-09-08 22:01 UTCEPSS rescore
  22. 2026-09-08 19:56 UTCEG score recompute
  23. 2026-09-08 18:16 UTCEG score recompute
  24. 2026-09-06 23:10 UTCEG score recompute
  25. 2026-09-06 13:47 UTCEPSS rescore
Show 4 more
  1. 2026-09-05 20:52 UTCEG score recompute
  2. 2026-09-04 18:35 UTCEG score recompute
  3. 2026-09-04 17:20 UTCEG score recompute
  4. 2026-09-04 17:19 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-57159?
CVE-2026-57159 is a high vulnerability published on September 4, 2026. PJSIP is a free and open source multimedia communication library written in C. Prior to commit 673b978, a remote out-of-bounds read and write can occur in the SDP negotiator when the remote payload-type map maintenance feature is enabled. assignptandupdatemap() in pjmedia/src/pjmedia/sdpneg.c uses…
When was CVE-2026-57159 disclosed?
CVE-2026-57159 was first published in the National Vulnerability Database 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-2026-57159 actively exploited?
CVE-2026-57159 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 72.4% of all scored CVEs.
What is the CVSS score of CVE-2026-57159?
CVE-2026-57159 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-57159?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-57159, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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