TI-2026-23917 Aliases CVE-2026-31256 GHSA-jhq8-6g6m-wm24

A null pointer dereference vulnerability exists in the RTSP service of the MERCURY…

HIGH 66CWE-476Published 2026-04-27 · Updated 2026-04-28

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-476.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00407 35th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:mercurycom:mipc252w_firmware:1.0.5:build_230306::::::	1.0.5 build_230306	Vulnerable	Mercurycom
cpe:2.3:h:mercurycom:mipc252w:-:::::::*	not specified by NVD	Running on	Mercurycom

cpe:2.3:o:mercurycom:mipc252w_firmware:1.0.5:build_230306:*:*:*:*:*:* Versions 1.0.5 build_230306 Vulnerable ·Mercurycom
cpe:2.3:h:mercurycom:mipc252w:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Mercurycom

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-31256
2026-10-03 Alias added: GHSA-jhq8-6g6m-wm24

References

Exploit 1

https://github.com/izxnfirh8148/CVE_REQUESTS_references/blob/main/MERCURY_MIPC252W/MERCURY_MIPC252W_1th/README.md

TI-2026-27789 MERCURY MIPC252W IP camera 1.0.5 Build 230306 Rel.79931n contains an improper… CVSS 3.1CRITICAL 9.8
TI-2026-27788 The RTSP service of MERCURY IP camera MIPC252W 1.0.5 Build 230306 has an issue handling… CVSS 3.1MEDIUM 6.2
TI-2026-27787 A handling issue in the RTSP service of the Mercury MIPC252W 1.0.5 Build 230306… CVSS 3.1MEDIUM 4.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences