CVE-2025-4368
Published: 06 May 2025
Summary
CVE-2025-4368 is a high-severity Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) vulnerability in Tenda Ac8 Firmware. Its CVSS base score is 8.7 (High).
Operationally, ranked in the top 19.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
A critical buffer overflow vulnerability exists in Tenda AC8 routers running firmware 16.03.34.06. The flaw is located in the formGetRouterStatus function of the /goform/MtuSetMacWan endpoint and is triggered by unsanitized input to the shareSpeed argument, corresponding to CWE-119 and CWE-120.
An authenticated remote attacker can supply a crafted shareSpeed value to overflow the buffer, potentially resulting in arbitrary code execution or a crash of the affected device. The vulnerability carries a CVSS 4.0 score of 8.7 and has been publicly disclosed with accompanying exploit details.
No vendor advisory or patch information is provided in the available references. The EPSS score remains flat at 0.0133 with no material rise observed after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-13613
Vulnerability details
A vulnerability, which was classified as critical, was found in Tenda AC8 16.03.34.06. Affected is the function formGetRouterStatus of the file /goform/MtuSetMacWan. The manipulation of the argument shareSpeed leads to buffer overflow. It is possible to launch the attack remotely.…
more
The exploit has been disclosed to the public and may be used.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
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.
Managed runtimes used by platform-independent applications (e.g., JVM, CLR) enforce memory safety, preventing most buffer overflows that require direct memory manipulation.
Ongoing control assessments and code testing (static/dynamic analysis, fuzzing) surface memory buffer restriction failures, which are then remediated before release.
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.