CVE-2026-57165

MEDIUMNVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.3 under NVD CVSS v3. EPSS exploit probability: 0.5% (37th 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
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 5.3Exploit: 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 628b716, a stack buffer overflow exists in the PJLIB-UTIL telnet CLI front-end when redrawing the command line during history recall (handle_up_down() in cli_telnet.c). This affects only applications that enable the telnet CLI front-end (same gating as the related CLI issue). The line-redraw sequence for a recalled history entry can accumulate more data than a fixed-size stack buffer holds, which may lead to application termination. Exploitation requires access to the unauthenticated telnet CLI, which already permits arbitrary CLI commands, so the additional impact is limited. Applications that do not enable the telnet CLI front-end are not affected. This issue has been patched via commit 628b716.

CVSS v3
5.3
EG Score
5.3MEDIUMmedium confidence
EG Risk
24
EG Risk 24/100CISA 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
Severity53% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
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; until then, restrict network exposure of the affected system or apply the vendor's mitigation.
EPSS PROB
0.5%
EPSS %ILE
37th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

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; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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 4, 2026
Fix referenced — no release confirmed yet. Sources: github, github_commit.
github_commit

commit 628b71638465 (pjsip/pjproject)

Fix landed in pjsip/pjproject commit 628b71638465 — awaiting tagged release

https://github.com/pjsip/pjproject/commit/628b71638465bacf66e767959e6acbab822eccd6
githubMentions a patch (unverified)

Pre-authentication overflow in the telnet CLI history · Advisory · pjsip/pjproject · GitHub

https://github.com/pjsip/pjproject/security/advisories/GHSA-rpq9-9fx7-95xw

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 / 53× 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. 2026-10-07 23:48 UTCEPSS rescore
  6. 2026-10-07 23:04 UTCEG score recompute
  7. 2026-10-06 15:18 UTCEPSS rescore
  8. 2026-10-06 14:43 UTCEG score recompute
  9. 2026-10-05 17:43 UTCEPSS rescore
  10. 2026-10-05 16:38 UTCEG score recompute
  11. 2026-10-04 23:22 UTCEPSS rescore
  12. 2026-10-03 19:14 UTCEG score recompute
  13. 2026-10-03 14:26 UTCEPSS rescore
  14. 2026-10-02 20:53 UTCEG score recompute
  15. 2026-10-02 17:56 UTCEPSS rescore
  16. 2026-10-01 22:42 UTCEG score recompute
  17. 2026-10-01 19:50 UTCEPSS rescore
  18. 2026-10-01 00:53 UTCEG score recompute
  19. 2026-09-30 15:03 UTCEPSS rescore
  20. 2026-09-30 02:40 UTCEG score recompute
  21. 2026-09-29 15:22 UTCEPSS rescore
  22. 2026-09-29 00:53 UTCEG score recompute
  23. 2026-09-28 13:51 UTCEPSS rescore
  24. 2026-09-28 03:05 UTCEG score recompute
  25. 2026-09-27 13:48 UTCEPSS rescore
Show 42 more
  1. 2026-09-27 05:17 UTCEG score recompute
  2. 2026-09-26 15:59 UTCEPSS rescore
  3. 2026-09-26 06:38 UTCEG score recompute
  4. 2026-09-25 08:29 UTCEG score recompute
  5. 2026-09-24 14:04 UTCEPSS rescore
  6. 2026-09-24 10:40 UTCEG score recompute
  7. 2026-09-23 17:54 UTCEPSS rescore
  8. 2026-09-22 14:59 UTCEG score recompute
  9. 2026-09-21 17:10 UTCEG score recompute
  10. 2026-09-20 20:16 UTCEPSS rescore
  11. 2026-09-19 21:33 UTCEG score recompute
  12. 2026-09-18 23:44 UTCEG score recompute
  13. 2026-09-18 19:28 UTCEPSS rescore
  14. 2026-09-18 01:55 UTCEG score recompute
  15. 2026-09-17 19:31 UTCEPSS rescore
  16. 2026-09-17 04:07 UTCEG score recompute
  17. 2026-09-16 14:08 UTCEPSS rescore
  18. 2026-09-16 06:15 UTCEG score recompute
  19. 2026-09-16 05:15 UTCEPSS rescore
  20. 2026-09-15 08:27 UTCEG score recompute
  21. 2026-09-15 03:11 UTCEPSS rescore
  22. 2026-09-14 10:37 UTCEG score recompute
  23. 2026-09-13 16:47 UTCEPSS rescore
  24. 2026-09-13 12:49 UTCEG score recompute
  25. 2026-09-11 17:12 UTCEG score recompute▼ 1.00
  26. 2026-09-11 16:53 UTCNVD updateCVSS v3 → 5.3
  27. 2026-09-11 15:19 UTCEG score recompute
  28. 2026-09-11 14:53 UTCEPSS rescore
  29. 2026-09-10 17:30 UTCEG score recompute
  30. 2026-09-10 09:35 UTCEPSS rescore
  31. 2026-09-09 19:42 UTCEG score recompute
  32. 2026-09-08 22:01 UTCEPSS rescore
  33. 2026-09-08 19:56 UTCEG score recompute
  34. 2026-09-08 18:16 UTCEG score recompute
  35. 2026-09-08 09:58 UTCEG score recompute
  36. 2026-09-07 16:01 UTCEPSS rescore
  37. 2026-09-06 14:11 UTCEG score recompute
  38. 2026-09-06 13:47 UTCEPSS rescore
  39. 2026-09-05 16:22 UTCEG score recompute
  40. 2026-09-04 18:34 UTCEG score recompute
  41. 2026-09-04 17:20 UTCEG score recompute
  42. 2026-09-04 17:19 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-57165?
CVE-2026-57165 is a medium vulnerability published on September 4, 2026. PJSIP is a free and open source multimedia communication library written in C. Prior to commit 628b716, a stack buffer overflow exists in the PJLIB-UTIL telnet CLI front-end when redrawing the command line during history recall (handleupdown() in cli_telnet.c). This affects only applications that…
When was CVE-2026-57165 disclosed?
CVE-2026-57165 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-2026-57165 actively exploited?
CVE-2026-57165 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (37th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-57165?
CVE-2026-57165 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-57165?
A fix for CVE-2026-57165 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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