Critical severity · published Sep 13, 2026
CVE-2026-90606
Totolink A3002MU boa formIpv6Setup buffer overflow
9.9
CVSS
0.9%
EPSS
No
On KEV
Description
A security vulnerability has been detected in Totolink A3002MU Hh-B20211125.1046. This issue affects the function formIpv6Setup of the file /boafrm/formIpv6Setup of the component boa. The manipulation of the argument static_ipv6 leads to buffer overflow. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 58% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
A3
A3002MU · Totolink
Hh-B20211125.1046 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-90606
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-90606
github.com
https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A3002MU/bof-formIpv6Setup.md
vuldb.com
https://vuldb.com/cve/CVE-2026-90606
vuldb.com
https://vuldb.com/submit/914010
vuldb.com
https://vuldb.com/vuln/403188
vuldb.com
https://vuldb.com/vuln/403188/cti
www.totolink.net
https://www.totolink.net/
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