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    CVE-2026-31256

    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.

    Published:Apr 27, 2026
    Last Modified:May 5, 2026
    EPS:Apr 27, 2026
    EPSS Score:0.00025
    CVSS Score:7.5

    Affected Products

    Vendor
    Mercury
    Product
    Mipc252w
    Vendor
    Mercurycom
    Product
    Mipc252w
    Vendor
    Mercurycom
    Product
    Mipc252w Firmware

    Exploits

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

    Common Weakness Enumeration

    CWE-476 NULL Pointer Dereference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-51597 (CVSS 9.1) — MERCURY MIPC252W IP camera v1.0.5 Build 230306 Rel.79931n does not implement nonce expiration in RTSP Digest a…
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    CVE-2026-35901 (CVSS 4.4) — A handling issue in the RTSP service of the Mercury MIPC252W 1.0.5 Build 230306 Rel.79931n allows an authentic…
    CVE-2026-35902 (CVSS 6.2) — The RTSP service of MERCURY IP camera MIPC252W 1.0.5 Build 230306 has an issue handling failed Digest authenti…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High