CVE-2026-35903 Auth bypass in n/a
Attackers can bypass RTSP authentication by reusing session parameters, allowing unauthorized control of MERCURY IP cameras.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-35903?
CVE-2026-35903 is a critical authentication bypass vulnerability in n/a, published on 27 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-287
Which versions are affected by CVE-2026-35903?
It affects 1 product.
Products include Mercurycom Mipc252w Firmware.
How do I fix CVE-2026-35903?
No fix has been published for CVE-2026-35903 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-35903 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-35903 exists.
Other vulnerabilities in n/a
Sources
Also known as GHSA-qcq4-vpjf-wxhh.