CVE-2025-4827
Published: 17 May 2025
Summary
CVE-2025-4827 is a high-severity Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) vulnerability in Totolink A702R 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 22.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-15585
Vulnerability details
A vulnerability, which was classified as critical, was found in TOTOLINK A702R, A3002R and A3002RU 3.0.0-B20230809.1615. Affected is an unknown function of the file /boafrm/formSaveConfig of the component HTTP POST Request Handler. The manipulation of the argument submit-url leads to…
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buffer overflow. It is possible to launch the attack 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?
Remotely exploitable buffer overflow in the public-facing web interface (/boafrm/formSaveConfig) of TOTOLINK routers enables exploitation for initial access (T1190) and application denial of service via crafted HTTP POST (T1499.004).
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.