CVE-2025-60691 — HIGH (8.8)

Vulnerability Description

A stack-based buffer overflow exists in the httpd binary of Linksys E1200 v2 routers (Firmware E1200_v2.0.11.001_us.tar.gz). The apply_cgi and block_cgi functions copy user-supplied input from the "url" CGI parameter into stack buffers (v36, v29) using sprintf without bounds checking. Because these buffers are allocated as single-byte variables, any non-empty input will trigger a buffer overflow. Remote attackers can exploit this vulnerability via crafted HTTP requests to execute arbitrary code or cause denial of service without authentication.

CVSS Score

8.8

HIGH

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

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Linksys	E1200 Firmware	2.0.11.001
Linksys	E1200	2

Related Weaknesses (CWE)

CWE-121

References

http://linksys.comProduct
https://github.com/yifan20020708/SGTaint-0-day/blob/main/Linksys/Linksys-E1200/CExploitThird Party Advisory
https://www.linksys.com/Product

FAQ

What is CVE-2025-60691?

CVE-2025-60691 is a vulnerability with a CVSS score of 8.8 (HIGH). A stack-based buffer overflow exists in the httpd binary of Linksys E1200 v2 routers (Firmware E1200_v2.0.11.001_us.tar.gz). The apply_cgi and block_cgi functions copy user-supplied input from the "ur...

How severe is CVE-2025-60691?

CVE-2025-60691 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-60691?

Check the references section above for vendor advisories and patch information. Affected products include: Linksys E1200 Firmware, Linksys E1200.