CVE-2025-5978
Published: 10 June 2025
Summary
CVE-2025-5978 is a high-severity Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) vulnerability in Tenda Fh1202 Firmware. Its CVSS base score is 7.4 (High).
Operationally, ranked in the top 18.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
CVE-2025-5978 is a stack-based buffer overflow vulnerability in Tenda FH1202 firmware version 1.2.0.14. It resides in the fromVirtualSer function within the /goform/VirtualSer endpoint and is triggered by unsanitized input supplied to the page argument. The issue is tracked under CWE-119, CWE-121, and CWE-787 and carries a CVSS 4.0 score of 7.4.
An authenticated remote attacker can send a crafted HTTP request to the affected endpoint, causing memory corruption on the stack. Successful exploitation yields full control over the confidentiality, integrity, and availability of the device without requiring user interaction. A working exploit has already been published.
The EPSS score remains flat at 0.0155 with no observed increase after disclosure, indicating limited active exploitation interest to date. No vendor patch or mitigation guidance is referenced in the available advisories.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-17834
Vulnerability details
A vulnerability was found in Tenda FH1202 1.2.0.14. It has been classified as critical. Affected is the function fromVirtualSer of the file /goform/VirtualSer. The manipulation of the argument page leads to stack-based buffer overflow. It is possible to launch the…
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attack remotely. 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.
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.