CVE-2026-90608 Details
Description
A flaw has been found in Totolink A3002MU Hh-B20211125.1046. The affected element is the function formPortFw of the file /boafrm/formPortFw of the component boa. This manipulation of the argument service_type causes buffer overflow. It is possible to initiate the attack remotely. The exploit has been published and may be used.
A buffer overflow vulnerability has been identified in the TOTOLINK A3002MU router, specifically in the web server component Boa. This issue arises in the 'formPortFw' function of the file '/boafrm/formPortFw'. The vulnerability is present in the firmware version Hh-B20211125.1046. The problem stems from improper validation of the 'service_type' parameter, allowing remote attackers to send crafted HTTP requests that overwrite adjacent memory. Exploitation of this vulnerability can cause a denial-of-service condition and potentially lead to arbitrary code execution.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 14, 2026CISA-ADP
Assessed Sep 16, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A3002MU/bof-formPortFw.md | [email protected] | ExploitTechnical Analysis |
| https://vuldb.com/cve/CVE-2026-90608 | [email protected] | Permission Required |
| https://vuldb.com/submit/914016 | [email protected] | Permission Required |
| https://vuldb.com/vuln/403190 | [email protected] | Permission Required |
| https://vuldb.com/vuln/403190/cti | [email protected] | Content Wall |
| https://www.totolink.net/ | [email protected] | Vendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-119 | Improper Restriction of Operations within the Bounds of a Memory Buffer | [email protected] |
| CWE-120 | Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| TOTOLINK A3002MU | Hh-B20211125.1046 |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 16, 2026 | CVE Modified | CISA-ADP |
| Sep 14, 2026 | New CVE Received | [email protected] |