CVE-2026-77532 Memory corruption in EdgeMAX EdgeSwitch
A remote attacker on an adjacent network can achieve code execution on Ubiquiti EdgeMAX EdgeSwitch devices via a buffer overflow in DHCPv6.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-77532?
CVE-2026-77532 is a high-severity memory corruption vulnerability in Ubiquiti Inc EdgeMAX EdgeSwitch, published on 26 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A malicious actor with access to an adjacent network could exploit a Buffer Overflow vulnerability found in a DHCPv6-enabled EdgeMAX EdgeSwitch to initiate a Remote Code Execution on such device.
Weakness: CWE-122
Which versions are affected by CVE-2026-77532?
How do I fix CVE-2026-77532?
No fix has been published for CVE-2026-77532 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-2026-77532 being exploited?
There is no known exploitation of CVE-2026-77532 in the wild and no public exploit code.
Sources
Also known as GHSA-ff9h-mmj4-g6xx.