CVE-2025-6148
Published: 17 June 2025
Summary
CVE-2025-6148 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 rated critical has been identified in the TOTOLINK A3002RU router running firmware version 3.0.0-B20230809.1615. The flaw resides in an unknown processing routine within the file /boafrm/formSysLog of the HTTP POST Request Handler component. Manipulation of the submit-url argument triggers a buffer overflow condition, tracked under CWE-119 and CWE-120, with a CVSS 4.0 score of 7.4 reflecting high impact on confidentiality, integrity, and availability.
The issue can be exploited remotely by an authenticated attacker who sends a crafted HTTP POST request to the affected endpoint. Successful exploitation grants the ability to execute arbitrary code or crash the device, and a proof-of-concept has already been published.
Public references consist of a GitHub repository containing exploit details and multiple Vuldb entries; no vendor advisory or patch information is referenced in the available sources. The associated EPSS score remains low at approximately 0.0136 with negligible movement from its recorded peak.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-18456
Vulnerability details
A vulnerability was found in TOTOLINK A3002RU 3.0.0-B20230809.1615. It has been rated as critical. This issue affects some unknown processing of the file /boafrm/formSysLog 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 initiated 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 vulnerability in the public-facing HTTP POST handler (/boafrm/formSysLog) of the TOTOLINK router web interface enables remote 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.