Unauthenticated code execution via route-list overflow
Published Jul 3, 2025 · Updated Jul 3, 2025
Stack buffer overflow in Tenda AC6 firmware 15.03.05.16_multi allows remote attackers to execute code via a crafted route list. The fromSetRouteStatic handler copies the HTTP list parameter without checking its length, overflowing a stack buffer. No authentication or user interaction is required, and successful exploitation grants code execution with full device compromise.
Summary
What happened
Stack buffer overflow in Tenda AC6 firmware 15.03.05.16_multi allows remote attackers to execute code via a crafted route list. The fromSetRouteStatic handler copies the HTTP list parameter without checking its length, overflowing a stack buffer. No authentication or user interaction is required, and successful exploitation grants code execution with full device compromise.
The record
- CVE
- CVE-2025-50263
- Published
- Jul 3, 2025
- Updated
- Jul 3, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-120, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 3, 2025CVE publishedPublication date reported by the CVE source.
- Jul 3, 2025Record 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
- fromSetRouteStatic list-parameter proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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