Cyber Resilience

CVE-2025-28136

Medium

Published: 15 April 2025

Published
15 April 2025
Modified
29 April 2025
KEV Added
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Patch
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CVSS Score v3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS Score 0.0053 67.7th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-28136 is a medium-severity Stack-based Buffer Overflow (CWE-121) vulnerability in Totolink A800R Firmware. Its CVSS base score is 6.5 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 32.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

TOTOLINK A800R V4.1.2cu.5137_B20200730 was found to contain a buffer overflow vulnerability in the downloadFile.cgi.

CWE(s)
CWE-121

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
Why these techniques?

Buffer overflow in downloadFile.cgi, a component of the TOTOLINK router's web management interface, enables remote code execution via exploitation of a public-facing application.

Affected Assets

totolink
a800r firmware
4.1.2cu.5137_b20200730

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References