CVE-2026-9789 NitroSense V3: Security Vulnerability Information
A local attacker can escalate privileges to system authority by exploiting weak ACLs on a named pipe to delete arbitrary files.
- 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-2026-9789?
CVE-2026-9789 is a high-severity vulnerability in Acer NitrorSense V3, published on 28 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A Local Privilege Escalation (LPE) vulnerability affects Acer NitroSense software versions prior to 3.01.3052. The vulnerability stems from the the PSAdminAgent service, which creates a Named Pipe with a weak Access Control List (ACL). This allows any authenticated local user to connect and send commands. Because the service does not check the caller's privileges before running file deletion commands, a low-privileged local user can exploit this to delete arbitrary files with system authority.
Which versions are affected by CVE-2026-9789?
How do I fix CVE-2026-9789?
No fix has been published for CVE-2026-9789 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-9789 being exploited?
There is no known exploitation of CVE-2026-9789 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-pcjv-vg43-2hf7.