CVE-2026-90605: Buffer Overflow (CVSS 9.9)

Description

A weakness has been identified in Totolink A3002MU Hh-B20211125.1046. This vulnerability affects the function formFilter of the file /boafrm/formFilter of the component boa. Executing a manipulation of the argument ip6addr can lead to buffer overflow. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks.

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CVSS v3.1 Score

9.9

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0047

Probability of exploitation

0.39%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-119 Buffer Overflow

CWE-120 CWE-120

References

Other References

https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A3002MU/bof-formFilter.md https://vuldb.com/cve/CVE-2026-90605 https://vuldb.com/submit/914009 https://vuldb.com/vuln/403187 https://vuldb.com/vuln/403187/cti https://www.totolink.net/

Frequently Asked Questions

What is CVE-2026-90605? +

A weakness has been identified in Totolink A3002MU Hh-B20211125.1046. This vulnerability affects the function formFilter of the file /boafrm/formFilter of the component boa. Executing a manipulation of the argument ip6addr can lead to buffer overflow. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks. It has a CVSS v3.1 base score of 9.9 (CRITICAL).

How severe is CVE-2026-90605? +

CVE-2026-90605 has a CVSS v3.1 score of 9.9 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately. The EPSS score is 0.0047, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-90605? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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