CVE-2025-7093
Published: 06 July 2025
Summary
CVE-2025-7093 is a high-severity Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) vulnerability in Belkin F9K1122 Firmware. Its CVSS base score is 7.4 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 21.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
A stack-based buffer overflow vulnerability exists in the Belkin F9K1122 wireless router running firmware version 1.00.33. The flaw resides in the formSetLanguage function within the webs component, specifically in the handling of the webpage argument passed to /goform/formSetLanguage. The issue is tracked under CWE-119 and CWE-121 and has been assigned a CVSS 4.0 score of 7.4.
An authenticated remote attacker can supply a crafted webpage value to trigger the overflow, potentially leading to arbitrary code execution or a denial of service on the device. The attack requires no user interaction beyond network access and can be launched over the network. Public proof-of-concept code has been released that demonstrates the flaw.
No vendor patch or official advisory has been issued, as Belkin did not respond to disclosure. The EPSS score remains flat at 0.0116 with no material increase since publication, indicating limited observed exploitation interest to date.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-20152
Vulnerability details
A vulnerability was found in Belkin F9K1122 1.00.33. It has been declared as critical. Affected by this vulnerability is the function formSetLanguage of the file /goform/formSetLanguage of the component webs. The manipulation of the argument webpage leads to stack-based buffer…
more
overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Stack-based buffer overflow in the Belkin router's public-facing web management interface (/goform/formSetLanguage) enables remote code execution via exploitation of a public-facing application.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Ongoing control assessments and code testing (static/dynamic analysis, fuzzing) surface memory buffer restriction failures, which are then remediated before release.
Managed runtimes used by platform-independent applications (e.g., JVM, CLR) enforce memory safety, preventing most buffer overflows that require direct memory manipulation.
Memory protections (e.g., W^X, ASLR) make exploitation of buffer-boundary violations far harder to turn into code execution.
Detects exploitation attempts that produce memory corruption, crashes, or anomalous behavior.