Authenticated code execution via unchecked webpage copy
Published Jul 6, 2025 · Updated Jul 7, 2025
Stack-based buffer overflow in Belkin F9K1122 1.00.33 allows remote authenticated users to execute code via a crafted webpage parameter. The webs binary's formSetLanguage function copies the unbounded webpage value into a stack local variable, overwriting its saved return address. Low-privileged browser-management access is required; a long value demonstrably crashes the device, while return-address control permits arbitrary code execution.
Summary
What happened
Stack-based buffer overflow in Belkin F9K1122 1.00.33 allows remote authenticated users to execute code via a crafted webpage parameter. The webs binary's formSetLanguage function copies the unbounded webpage value into a stack local variable, overwriting its saved return address. Low-privileged browser-management access is required; a long value demonstrably crashes the device, while return-address control permits arbitrary code execution.
The record
- CVE
- CVE-2025-7093
- Published
- Jul 6, 2025
- Updated
- Jul 7, 2025
- Vendor
- Belkin
- Product
- Belkin F9K1122
- Classifications
- CWE-121, CWE-119, T1210
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 6, 2025CVE publishedPublication date reported by the CVE source.
- Jul 7, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.00.33
What conditions does exploitation require?
What is affected?
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
- Belkin F9K1122 formSetLanguage crash PoCproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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