CVE-2026-108893 Linksys E1700 setVlan stack-based overflow
Remote attackers can trigger a stack-based buffer overflow in the Linksys E1700 router's setVlan function, potentially leading to code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-108893?
CVE-2026-108893 is a critical memory corruption vulnerability in Linksys E1700, published on 12 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was identified in Linksys E1700 up to 1.0.0.4.003. This issue affects the function setVlan of the file /goform/setVlan. Such manipulation of the argument vlan_set leads to stack-based buffer overflow. The attack may be launched remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-108893?
How do I fix CVE-2026-108893?
No fix has been published for CVE-2026-108893 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-108893 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-108893 exists.
Sources
Also known as GHSA-3px7-h6cw-5c93.