NULL pointer dereference in Totolink Ex1200l
CVE-2026-75013
A vulnerability was detected in TOTOLINK EX1200L 9.3.5u.6146_B20201023. This affects the function setWizardCfg of the file /cgi-bin/cstecgi.cgi. The manipulation results in null pointer dereference. The attack can be launched remotely. The exploit is now public and may be used.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.007 (49.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 49.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.007 · change: +0.003
Affected products
- Totolink Ex1200l — versions 9.3.5u.6146_B20201023
Weakness classification (CWE)
References
- vuldb.com/vuln/391273 (technical-description, vdb-entry)
- vuldb.com/vuln/391273/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-75013 (third-party-advisory)
- vuldb.com/submit/876033 (third-party-advisory)
- gist.github.com/wyxstarry/21e6c2853891a3beb140a7c879069f9f (exploit)
- www.totolink.net/ (product)
Frequently asked questions
- What is CVE-2026-75013?
- CVE-2026-75013 is a medium-severity vulnerability in Totolink Ex1200l, classified under Improper Resource Shutdown or Release. CVSS score: 6.5/10. Published 2026-08-17.
- How severe is CVE-2026-75013?
- Medium severity. CVSS v3 base score is 6.5 out of 10.