Vulnerability · Published Jan 8, 2026 · Assigned by VulDB
CVE-2026-0731TOTOLINK WA1200 HTTP Request cstecgi.cgi null pointer dereference
Medium 5.3
In plain English
A medium-severity null pointer dereference in WA1200 from TOTOLINK. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 54% of all known vulnerabilities).
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.7%top 46.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A vulnerability has been found in TOTOLINK WA1200 5.9c.2914. The impacted element is an unknown function of the file cstecgi.cgi of the component HTTP Request Handler. The manipulation leads to null pointer dereference. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used.
Affected products (as reported)
Weakness: CWE-476, CWE-404 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:W/RC:R
References
- VDB-340128 | TOTOLINK WA1200 HTTP Request cstecgi.cgi null pointer dereference vdb-entry, technical-description
- VDB-340128 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #733249 | TOTOLINK WA1200 V5.9c.2914 NULL Pointer Dereference third-party-advisory
- https://github.com/JackWesleyy/CVE/blob/main/WA1200/TOTOLINK%20WA1200%20NULL%20Pointer%20Dereference%20Vulnerability.md related
- https://github.com/JackWesleyy/CVE/blob/main/WA1200/TOTOLINK%20WA1200%20NULL%20Pointer%20Dereference%20Vulnerability.md#poc exploit
- https://www.totolink.net/ product