What is CVE-2026-51603?

CVE-2026-51603 is a high-severity vulnerability in N/a, classified under Stack-based Buffer Overflow. CVSS score: 7.5/10. Published 2026-07-09.

How severe is CVE-2026-51603?

High severity. CVSS v3 base score is 7.5 out of 10.

Buffer overflow in N/a

CVE-2026-51603

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 second SETUP request. After completing the OPTIONS…

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

N/a — versions n/a

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow

References

cve@mitre.org

Frequently asked questions

What is CVE-2026-51603?: CVE-2026-51603 is a high-severity vulnerability in N/a, classified under Stack-based Buffer Overflow. CVSS score: 7.5/10. Published 2026-07-09.
How severe is CVE-2026-51603?: High severity. CVSS v3 base score is 7.5 out of 10.