CVE-2025-8244
Published: 27 July 2025
Summary
CVE-2025-8244 is a high-severity Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) vulnerability in Totolink X15 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 15.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-16 (Memory Protection).
Deeper analysis
A vulnerability classified as critical exists in the TOTOLINK X15 router running firmware version 1.0.0-B20230714.1105. It resides in an unknown function within the file /boafrm/formMapDelDevice of the HTTP POST Request Handler component. Manipulation of the macstr argument triggers a buffer overflow condition, as indicated by the associated CWEs for improper restriction of operations within bounds of a memory buffer and command injection risks.
Remote attackers can exploit the flaw without user interaction or high attack complexity, requiring only low privileges. Successful exploitation grants full control over confidentiality, integrity, and availability on the affected device, with a publicly disclosed proof-of-concept available that enables remote code execution or denial of service.
The current EPSS score of 0.0225, with a peak of 0.0227, reflects limited observed exploitation interest following disclosure. No vendor patch or mitigation guidance is detailed in the provided references, though the manufacturer site and vulnerability databases list the issue for tracking.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-22833
Vulnerability details
A vulnerability was found in TOTOLINK X15 1.0.0-B20230714.1105. It has been classified as critical. Affected is an unknown function of the file /boafrm/formMapDelDevice of the component HTTP POST Request Handler. The manipulation of the argument macstr leads to buffer overflow.…
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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?
Remote buffer overflow (CWE-120) in router web interface (/boafrm/formMapDelDevice) via 'macstr' enables unauthenticated exploitation of public-facing application (T1190), remote services (T1210), command injection into Unix shell (T1059.004 per advisories), and DoS via application exploitation (T1499.004).
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Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Information Input Validation directly prevents buffer overflows by enforcing bounds checking and validation on the macstr POST parameter before processing.
Memory Protection implements safeguards like DEP and ASLR to minimize the impact of buffer overflow exploits attempting arbitrary code execution.
Flaw Remediation requires timely patching of the specific buffer overflow in the HTTP POST handler to eliminate the vulnerability.