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CVE-2026-51602

n/a / n/a PUBLISHED

Description (CNA)

A stack-based buffer overflow vulnerability in the RTSP service of Tenda CP3 V3.0 (firmware V31.1.9.91) allows an unauthenticated remote attacker to cause a denial of service via a crafted SETUP request. The RTSP service's second-stage URL routing parser fails to validate the length of the URL field in the first SETUP request. By supplying a URL consisting of exactly four consecutive repetitions of a valid RTSP URL, an attacker can bypass first-stage format validation and trigger a stack buffer overflow, causing an immediate crash of the RTSP service process and rendering the device inaccessible to all clients on the local network.

Affected (CNA)

Vendor / productVersions
n/a / n/aaffected n/a

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.