Buffer overflow in Totolink A3002mu
CVE-2026-6194
A weakness has been identified in Totolink A3002MU B20211125.1046. Affected by this vulnerability is the function sub_410188 of the file /boafrm/formWlanSetup of the component HTTP Request Handler. This manipulation of the argument wan-url causes stack-based buffer overflow. Remote exploitation of the attack is possible. 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 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (54.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 54.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.008 · change: +0.003
Affected products
- Totolink A3002mu — versions B20211125.1046
Weakness classification (CWE)
References
- vuldb.com/vuln/357116 (technical-description, vdb-entry)
- vuldb.com/vuln/357116/cti (signature, permissions-required)
- vuldb.com/submit/797452 (third-party-advisory)
- github.com/zhuchan770/vulnerability/blob/main/A3002MU/formWlanSetup/ToToLinkA30… (exploit)
- www.totolink.net/ (product)
Frequently asked questions
- What is CVE-2026-6194?
- CVE-2026-6194 is a high-severity vulnerability in Totolink A3002mu, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2026-04-13.
- How severe is CVE-2026-6194?
- High severity. CVSS v3 base score is 8.8 out of 10.