Mercury MIPC252W 1.0.5 Build 230306 Rel.79931n RTSP Service Digest improper authentication

Summaryinfo

A vulnerability, which was classified as critical, has been found in Mercury MIPC252W 1.0.5 Build 230306 Rel.79931n. The affected element is an unknown function of the component RTSP Service. Performing a manipulation of the argument Digest results in improper authentication. This vulnerability is identified as CVE-2026-35903. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Mercury MIPC252W 1.0.5 Build 230306 Rel.79931n. It has been classified as critical. This affects an unknown functionality of the component RTSP Service. The manipulation of the argument Digest with an unknown input leads to a improper authentication vulnerability. CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

MERCURY MIPC252W IP camera 1.0.5 Build 230306 Rel.79931n contains an improper authentication vulnerability in the RTSP service. After successful Digest authentication in an initial DESCRIBE request, the device does not verify the Digest response parameter in subsequent RTSP requests within the same session. As a result, RTSP methods such as SETUP, PLAY, and TEARDOWN can be processed even when the Authorization header contains an empty or invalid response value, as long as the nonce and session identifier correspond to a previously authenticated session. This allows an attacker with network access to reuse session parameters and issue unauthorized RTSP control commands without computing a valid Digest response.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-35903 since 04/06/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/27/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• Mercury

Name

• MIPC252W

Version

• 1.0.5 Build 230306 Rel.79931n

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