CVE-2026-78860 Hardcoded credentials in n/a
A local attacker can execute arbitrary code on Mercusys AC12 V2 routers due to plaintext storage of sensitive information.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-78860?
CVE-2026-78860 is a high-severity vulnerability in n/a, published on 5 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An issue in Mercusys AC12 V2 allows a local attacker to execute arbitrary code via the storage of information in plaintext
Which versions are affected by CVE-2026-78860?
How do I fix CVE-2026-78860?
No fix has been published for CVE-2026-78860 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-78860 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-78860 exists.
Sources
Also known as GHSA-j47g-wqf7-q7w8.