CVE-2025-6163
Published: 17 June 2025
Summary
CVE-2025-6163 is a high-severity Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) vulnerability in Totolink A3002Ru 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 19.4% 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 vulnerability classified as critical was found in the TOTOLINK A3002RU firmware version 3.0.0-B20230809.1615. It resides in an unknown function of the file /boafrm/formMultiAP within the HTTP POST Request Handler component. The issue stems from improper handling of the submit-url argument, resulting in a buffer overflow condition tracked under CWE-119 and CWE-120.
An attacker with network access and valid credentials can send a crafted HTTP POST request to trigger the overflow remotely. Successful exploitation grants the ability to execute arbitrary code or crash the affected device, as demonstrated by a publicly disclosed proof-of-concept.
The EPSS score has remained essentially flat near 0.0136 since disclosure, with no indication of rising exploitation interest. Public references consist of a GitHub repository containing the proof-of-concept and VulDB entries that document the flaw, but no vendor advisory or patch information is provided in the available sources.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-18475
Vulnerability details
A vulnerability was found in TOTOLINK A3002RU 3.0.0-B20230809.1615 and classified as critical. Affected by this issue is some unknown functionality of the file /boafrm/formMultiAP of the component HTTP POST Request Handler. The manipulation of the argument submit-url leads to buffer…
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overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Buffer overflow in the router's public-facing web management interface (/boafrm/formMultiAP) via remote HTTP POST manipulation of submit-url enables 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.
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.