CVE-2026-7633 Totolink N300RH cstecgi.cgi setUploadSetting file inclusion
Remote attackers can exploit a file inclusion vulnerability in the Totolink N300RH router's CGI interface to execute arbitrary code or read sensitive files.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-7633?
CVE-2026-7633 is a medium-severity path traversal vulnerability in Totolink N300RH, published on 2 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability was identified in Totolink N300RH 6.1c.1353_B20190305. This impacts the function setUploadSetting of the file /cgi-bin/cstecgi.cgi. Such manipulation of the argument FileName leads to file inclusion. The attack may be performed from remote. The exploit is publicly available and might be used.
Weakness: CWE-73
Which versions are affected by CVE-2026-7633?
How do I fix CVE-2026-7633?
No fix has been published for CVE-2026-7633 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-7633 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-7633 exists.
Sources
Also known as GHSA-q632-88qp-5p5h.