Mercury MIPC252W IP camera 1.0.5 Digest Authentication nonce/response authentication replay

Summaryinfo

A vulnerability labeled as critical has been found in Mercury MIPC252W IP camera 1.0.5. The affected element is an unknown function of the component Digest Authentication. Such manipulation of the argument nonce/response leads to authentication replay. This vulnerability is referenced as CVE-2026-51597. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in Mercury MIPC252W IP camera 1.0.5 and classified as critical. Affected by this issue is an unknown part of the component Digest Authentication. The manipulation of the argument nonce/response with an unknown input leads to a authentication replay vulnerability. Using CWE to declare the problem leads to CWE-294. A capture-replay flaw exists when the design of the product makes it possible for a malicious user to sniff network traffic and bypass authentication by replaying it to the server in question to the same effect as the original message (or with minor changes). Impacted is confidentiality, integrity, and availability. CVE summarizes:

MERCURY MIPC252W IP camera v1.0.5 Build 230306 Rel.79931n does not implement nonce expiration in RTSP Digest authentication. An adjacent network attacker can capture a legitimate authentication exchange and replay the nonce and response values in a new connection to bypass authentication without knowledge of the device credentials, gaining unauthorized access to the live video stream.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-51597 since 06/08/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 07/09/2026). The MITRE ATT&CK project declares the attack technique as T1040.

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

Type

• Network Camera Software

Vendor

• Mercury

Name

• MIPC252W IP camera

Version

• 1.0.5

CPE 2.3info

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CPE 2.2info

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