Is CVE-2026-31256 actively exploited?

No active exploitation of CVE-2026-31256 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-31256 be exploited remotely?

Yes. CVE-2026-31256 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-31256?

CVE-2026-31256 has a CVSS score of 7.5 (HIGH).

HOME VULNERABILITIESCVE-2026-31256

HIGH

CVE-2026-31256

Published: April 27, 2026· Updated: Apr 28, 2026

7.5

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:5.3th

Official Description

A null pointer dereference vulnerability exists in the RTSP service of the MERCURY MIPC252W 1.0.5 Build 230306 Rel.79931n. During the processing of a SETUP request for the path rtsp://<IP>:554/stream1/track2, the device fails to properly validate the Transport header field. When this header is improperly constructed, the RTSP service can dereference a NULL pointer during request parsing. Successful exploitation causes the device to crash and automatically reboot.

NVD Source

Technical Analysis

CVE-2026-31256 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.