Buffer overflow in Totolink A3002mu
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.009 (58.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Totolink A3002mu — versions Hh-B20211125.1046
Weakness classification (CWE)
References
- vuldb.com/vuln/403187 (technical-description, vdb-entry)
- vuldb.com/vuln/403187/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-90605 (third-party-advisory)
- vuldb.com/submit/914009 (third-party-advisory)
- github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A3002MU/b… (exploit)
- www.totolink.net/ (product)
Frequently asked questions
- What is CVE-2026-90605?
- CVE-2026-90605 is a critical-severity vulnerability in Totolink A3002mu, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.9/10. Published 2026-09-14.
- How severe is CVE-2026-90605?
- Critical severity. CVSS v3 base score is 9.9 out of 10.