CVE-2022-39269

CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.1 under NVD CVSS v3. EPSS exploit probability: 0.6%, top 57% 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
9.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.1Exploit: NoneExposed: 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. When processing certain packets, PJSIP may incorrectly switch from using SRTP media transport to using basic RTP upon SRTP restart, causing the media to be sent insecurely. The vulnerability impacts all PJSIP users that use SRTP. The patch is available as commit d2acb9a in the master branch of the project and will be included in version 2.13. Users are advised to manually patch or to upgrade. There are no known workarounds for this vulnerability.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
56(Track)
EG Risk 56/100SSVC: 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
Severity91% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
43.1%
KEV
Not listed

Published

October 6, 2022

Last Modified

May 6, 2026

Advisory Details (5)

Auto-updated May 6, 2026
Patch available. Sources: github.
generic

[SECURITY] [DSA 5358-1] asterisk security update

https://www.debian.org/security/2023/dsa-5358
generic

PJSIP: Multiple Vulnerabilities (GLSA 202210-37) — Gentoo security

https://security.gentoo.org/glsa/202210-37
generic Patch Available

[SECURITY] [DLA 3335-1] asterisk security update

https://lists.debian.org/debian-lts-announce/2023/02/msg00029.html
github Patch Available

Potential media transport downgrade from the secure version (SRTP) to the non-secure one (RTP) · Advisory · pjsip/pjproject · GitHub

https://github.com/pjsip/pjproject/security/advisories/GHSA-wx5m-cj97-4wwg
generic

Merge pull request from GHSA-wx5m-cj97-4wwg · pjsip/pjproject@d2acb9a · GitHub

https://github.com/pjsip/pjproject/commit/d2acb9af4e27b5ba75d658690406cec9c274c5cc

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 51× 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.

Showing the most recent 100 of 142 total refreshes for this CVE.

  1. 2026-07-23 14:16 UTCEPSS rescore
  2. 2026-07-23 02:13 UTCEG score recompute
  3. 2026-07-22 23:00 UTCEG score recompute
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  1. 2026-07-11 08:25 UTCEPSS rescore
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  27. 2026-06-22 19:35 UTCOSV refresh
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Frequently asked(5)

What is CVE-2022-39269?
CVE-2022-39269 is a critical vulnerability published on October 6, 2022. PJSIP is a free and open source multimedia communication library written in C. When processing certain packets, PJSIP may incorrectly switch from using SRTP media transport to using basic RTP upon SRTP restart, causing the media to be sent insecurely. The vulnerability impacts all PJSIP users that…
When was CVE-2022-39269 disclosed?
CVE-2022-39269 was first published in the National Vulnerability Database on October 6, 2022, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-39269 actively exploited?
CVE-2022-39269 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 43.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-39269?
CVE-2022-39269 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2022-39269?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-39269, 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.

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