CVE-2026-33069

MEDIUM EPSS 17.3%
Published Mar 20, 20263mo ago · Modified Mar 23, 20263mo ago
6.9 CVSS 4.0
Medium
Find Similar
Published Mar 20, 2026 3mo ago
Last Modified Mar 23, 2026 3mo ago

Description

PJSIP is a free and open source multimedia communication library written in C. Versions 2.16 and below have a cascading out-of-bounds heap read in pjsip_multipart_parse(). After boundary string matching, curptr is advanced past the delimiter without verifying it has not reached the buffer end. This allows 1-2 bytes of adjacent heap memory to be read. All applications that process incoming SIP messages with multipart bodies or SDP content are potentially affected. This issue is resolved in version 2.17.

CVSS Details

Base Score
6.9
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/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
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
17.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-125 Out-of-bounds Read Memory Safety

Affected Products 1

VendorProductVersionRange
pjsippjsip* <2.17

References 2

  • github.com https://github.com/pjsip/pjproject/commit/f0fa32a226df5f87a9903093e5d145ebb69734db
    Patch
  • github.com https://github.com/pjsip/pjproject/security/advisories/GHSA-x5pq-qrp4-fmrj
    PatchVendor Advisory

Remediation

  • github.com https://github.com/pjsip/pjproject/commit/f0fa32a226df5f87a9903093e5d145ebb69734db
    Patch
  • github.com https://github.com/pjsip/pjproject/security/advisories/GHSA-x5pq-qrp4-fmrj
    PatchVendor Advisory