Is CVE-2026-35203 actively exploited?

No active exploitation of CVE-2026-35203 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-35203 be exploited remotely?

Yes. CVE-2026-35203 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-35203?

CVE-2026-35203 has a CVSS score of 7.5 (HIGH).

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HIGH

CVE-2026-35203

CWE-125Published: April 6, 2026· Updated: Apr 7, 2026

7.5

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:12.1th

Official Description

ZLMediaKit is a streaming media service framework. the VP9 RTP payload parser in ext-codec/VP9Rtp.cpp reads multiple fields from the RTP payload based on flag bits in the first byte, without verifying that sufficient data exists in the buffer. A crafted VP9 RTP packet with a 1-byte payload (0xFF, all flags set) causes the parser to read past the end of the allocated buffer, resulting in a heap-buffer-overflow. This vulnerability is fixed with commit 435dcbcbbf700fd63b2ca9eac6cef3b5ea75169d.

NVD Source

Technical Analysis

CVE-2026-35203 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 availability disruption (denial of service), with a CVSS base score of 7.5.