NULL pointer dereference in Totolink Wa1200
CVE-2026-0731
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.007 (50.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 50.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.007 · change: +0.001
Affected products
- Totolink Wa1200 — versions 5.9c.2914
- Totolink Wa1200-Poe
- Totolink Wa1200-Poe Firmware — versions 5.9c.2914
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/JackWesleyy/CVE/blob/main/WA1200/TOTOLINK WA1200 NULL Pointer Derefe… (related, Exploit, Third Party Advisory)
- github.com/JackWesleyy/CVE/blob/main/WA1200/TOTOLINK WA1200 NULL Pointer Derefe… (Exploit, Third Party Advisory, exploit)
- www.totolink.net/ (Product, product)
Frequently asked questions
- What is CVE-2026-0731?
- CVE-2026-0731 is a medium-severity vulnerability in Totolink Wa1200, classified under Improper Resource Shutdown or Release. CVSS score: 5.3/10. Published 2026-01-08.
- How severe is CVE-2026-0731?
- Medium severity. CVSS v3 base score is 5.3 out of 10.