CVE-2025-5080
Published: 22 May 2025
Summary
CVE-2025-5080 is a high-severity Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) vulnerability in Tenda Fh451 Firmware. Its CVSS base score is 8.7 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 20.9% 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 critical stack-based buffer overflow vulnerability, tracked as CVE-2025-5080, affects the Tenda FH451 router running firmware version 1.0.0.9. The flaw resides in the webExcptypemanFilter function of the /goform/webExcptypemanFilter endpoint, where improper handling of the page argument allows an attacker to overwrite memory on the stack. The issue is tracked under CWE-119, CWE-121, and CWE-787 and carries a CVSS 4.0 score of 8.7.
An authenticated remote attacker can send a crafted HTTP request to the affected endpoint, triggering the overflow to achieve arbitrary code execution or a denial of service. The vulnerability can be exploited over the network without user interaction, and a public proof-of-concept has already been disclosed.
No vendor advisory or firmware update addressing the issue is referenced in the available sources. The EPSS score has remained flat at 0.0118 since disclosure, indicating limited observed exploitation activity to date.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-16154
Vulnerability details
A vulnerability classified as critical has been found in Tenda FH451 1.0.0.9. Affected is the function webExcptypemanFilter of the file /goform/webExcptypemanFilter. The manipulation of the argument page leads to stack-based buffer overflow. It is possible to launch the attack remotely.…
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The exploit has been disclosed to the public and may be used.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Stack-based buffer overflow in the router's web interface (/goform/webExcptypemanFilter) allows remote unauthenticated code execution, enabling 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.
Memory protections (e.g., W^X, ASLR) make exploitation of buffer-boundary violations far harder to turn into code execution.
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.
Detects exploitation attempts that produce memory corruption, crashes, or anomalous behavior.