CVE-2025-60691

Published Nov 13, 2025 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:h:linksys:e1200:2:*:*:*:*:*:*:*
cpe:2.3:o:linksys:e1200_firmware:2.0.11.001:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Linksys
Linksys e1200
Linksys e1200 Firmware
Vendors & Products Linksys
Linksys e1200
Linksys e1200 Firmware
Type Values Removed Values Added
Weaknesses CWE-121
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Jul 5, 2026, 1:19 AM
Reserved
Sep 26, 2025, 12:00 AM
Status
Modified
Published
Nov 13, 2025, 5:15 PM
Modified
Nov 5, 2026, 2:10 PM