Unauthenticated service interruption via unchecked CGI concatenation
Published Nov 13, 2025 · Updated Jul 5, 2026
Stack buffer overflow in Linksys E1200 v2 firmware 2.0.11.001 allows remote attackers to interrupt service via crafted HTTP requests. The validate_static_route function concatenates four user-controlled values from each route-address, netmask, and gateway CGI group into separate 20-byte buffers without length checks. No authentication or user interaction is required; CISA's assessment bounds the scored impact to service availability despite the source's code-execution claim.
Summary
What happened
Stack buffer overflow in Linksys E1200 v2 firmware 2.0.11.001 allows remote attackers to interrupt service via crafted HTTP requests. The validate_static_route function concatenates four user-controlled values from each route-address, netmask, and gateway CGI group into separate 20-byte buffers without length checks. No authentication or user interaction is required; CISA's assessment bounds the scored impact to service availability despite the source's code-execution claim.
The record
- CVE
- CVE-2025-60694
- Published
- Nov 13, 2025
- Updated
- Jul 5, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-121, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Nov 13, 2025CVE publishedPublication date reported by the CVE source.
- Jul 5, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- CVE-2025-60694 crafted HTTP request proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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