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.
History

Tue, 05 May 2026 01:45:00 +0000

Type Values Removed Values Added
First Time appeared Mercurycom
Mercurycom mipc252w
Mercurycom mipc252w Firmware
CPEs cpe:2.3:h:mercurycom:mipc252w:-:*:*:*:*:*:*:*
cpe:2.3:o:mercurycom:mipc252w_firmware:1.0.5:build_230306:*:*:*:*:*:*
Vendors & Products Mercurycom
Mercurycom mipc252w
Mercurycom mipc252w Firmware

Tue, 28 Apr 2026 20:15:00 +0000

Type Values Removed Values Added
Title Null Pointer Dereference in RTSP Service Causing Device Reboot

Tue, 28 Apr 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 28 Apr 2026 13:45:00 +0000

Type Values Removed Values Added
Title Null Pointer Dereference in RTSP Service Causing Device Reboot
Weaknesses CWE-476

Tue, 28 Apr 2026 09:45:00 +0000

Type Values Removed Values Added
First Time appeared Mercury
Mercury mipc252w
Vendors & Products Mercury
Mercury mipc252w

Mon, 27 Apr 2026 18:45:00 +0000

Type Values Removed Values Added
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.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2026-04-27T00:00:00.000Z

Updated: 2026-04-28T15:05:27.912Z

Reserved: 2026-03-09T00:00:00.000Z

Link: CVE-2026-31256

cve-icon Vulnrichment

Updated: 2026-04-28T15:05:23.769Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-27T19:16:47.230

Modified: 2026-05-05T01:30:08.923

Link: CVE-2026-31256

cve-icon Redhat

No data.