Is CVE-2026-34235 actively exploited?

No active exploitation of CVE-2026-34235 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-34235 be exploited remotely?

Yes. CVE-2026-34235 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-34235?

CVE-2026-34235 has a CVSS score of 9.1 (CRITICAL).

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CRITICAL

CVE-2026-34235

CWE-125Published: March 31, 2026· Updated: Apr 3, 2026

9.1

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:10.5th

Official Description

PJSIP is a free and open source multimedia communication library written in C. Prior to version 2.17, a heap out-of-bounds read vulnerability exists in PJSIP's VP9 RTP unpacketizer that occurs when parsing crafted VP9 Scalability Structure (SS) data. Insufficient bounds checking on the payload descriptor length may cause reads beyond the allocated RTP payload buffer. This issue has been patched in version 2.17. A workaround for this issue involves disabling VP9 codec if not needed.

NVD Source

Technical Analysis

CVE-2026-34235 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), availability disruption (denial of service), with a CVSS base score of 9.1.