CVE-2026-51597

CRITICALCVSS 9.1/10EPSS 0.19%

Last modified

CVE-2026-51597 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. 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.. EPSS estimates a 0.19% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
9.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS Probability
0.19%

9.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
n/a

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2026-51597?
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.
How severe is CVE-2026-51597?
CVE-2026-51597 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 0.19% probability of exploitation in the next 30 days.
How do I fix CVE-2026-51597?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST