CVE-2026-35903
Auth bypass in MERCURY MIPC252W RTSP allows session reuse to issue unauthorized RTSP commands.
Is CVE-2026-35903 being exploited?
Not confirmed. CVE-2026-35903 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.49% probability of exploitation in the next 30 days.
How severe is CVE-2026-35903?
CVE-2026-35903 is rated Critical with a CVSS score of 9.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-35903?
Not known from our data. No patch reference has been recorded for CVE-2026-35903, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-35903 affect?
CVE-2026-35903 affects MERCURY MIPC252W IP camera 1.0.5 Build 230306 Rel.79931n. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-35903?
Patch when available; limit RTSP exposure to trusted networks.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote attacker can reuse an authenticated session to issue RTSP control (SETUP/PLAY/TEARDOWN) without a valid Digest, enabling camera control or eavesdropping.
Immediate action required