Authenticated memory corruption via unchecked sprintf
Published Oct 5, 2025 · Updated Oct 5, 2025
Stack-based buffer overflow in Belkin F9K1015 1.00.10 allows remote authenticated users to corrupt memory via max_Conn. The formConnectionSetting handler passes the POST parameter directly to sprintf without a length check, overflowing its stack buffer. Low-privileged web-interface access is required; public evidence establishes memory corruption but not code execution or a specific post-overflow result.
Summary
What happened
Stack-based buffer overflow in Belkin F9K1015 1.00.10 allows remote authenticated users to corrupt memory via max_Conn. The formConnectionSetting handler passes the POST parameter directly to sprintf without a length check, overflowing its stack buffer. Low-privileged web-interface access is required; public evidence establishes memory corruption but not code execution or a specific post-overflow result.
The record
- CVE
- CVE-2025-11293
- Published
- Oct 5, 2025
- Updated
- Oct 5, 2025
- Vendor
- Belkin
- Product
- F9K1015
- Classifications
- CWE-119, CWE-120
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 5, 2025CVE publishedPublication date reported by the CVE source.
- Oct 5, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.00.10
What conditions does exploitation require?
What is affected?
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
- formConnectionSetting oversized max_Conn HTTP requestproof of concept · unverified
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo