Is CVE-2026-26967 actively exploited?

CVE-2026-26967 has no public evidence of in-the-wild exploitation as of 2026-02-20.

What is the CVSS score for CVE-2026-26967?

CVE-2026-26967 has a CVSS score of 8.1 (HIGH severity). Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/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.

How do I patch CVE-2026-26967?

Patch guidance is available from pjsip security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-26967.

Fix CVE-2026-26967 - HIGH pjsip pjsip

Description

PJSIP is a free and open source multimedia communication library written in C. In versions 2.16 and below, there is a critical Heap-based Buffer Overflow vulnerability in PJSIP's H.264 unpacketizer. The bug occurs when processing malformed SRTP packets, where the unpacketizer reads a 2-byte NAL unit size field without validating that both bytes are within the payload buffer bounds. The vulnerability affects applications that receive video using H.264. A patch is available at https://github.com/pjsip/pjproject/commit/f821c214e52b11bae11e4cd3c7f0864538fb5491.

CVSS Metrics

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/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
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Confidentiality: undefined
Integrity: undefined
Availability: undefined
Weaknesses: CWE-122

Metadata

Primary Vendor: PJSIP
Published: 2/20/2026
Last Modified: 2/20/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

pjsip : pjsip

Remediation Guidance

Executive Summary

Cite this page

CVE-2026-26967. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2026-26967

View on NIST NVD

CVE-2026-26967 vulnerability