CVE-2026-121933 Linksys E5350 Setup Wizard apply.cgi save_settings missing authentication
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-121933?
CVE-2026-121933 is a critical vulnerability in Linksys E5350, published on 4 Nov 2026.
Official description
A flaw has been found in Linksys E5350 1.0.00.037. This impacts the function save_settings of the file /wizard/apply.cgi of the component Setup Wizard. Executing a manipulation of the argument wizard_router_pwd can lead to missing authentication. The attack may be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-121933?
How do I fix CVE-2026-121933?
No fix has been published for CVE-2026-121933 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-121933 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-121933 exists.
Sources
Also known as GHSA-rh2v-jr94-g2vf.