CVE-2026-3991 Elevation of Privileges in Symantec Data Loss Prevention Windows Endpoint
An attacker can exploit this vulnerability in Symantec Data Loss Prevention Windows Endpoint to gain elevated access to protected system resources.
- 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-2026-3991?
CVE-2026-3991 is a high-severity vulnerability in Broadcom Data Loss Prevention, published on 30 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Symantec Data Loss Prevention Windows Endpoint, prior to 25.1 MP1, 16.1 MP2, 16.0 RU2 HF9, 16.0 RU1 MP1 HF12, and 16.0 MP2 HF15, may be susceptible to a Elevation of Privilege vulnerability, which is a type of issue whereby an attacker may attempt to compromise the software application to gain elevated access to resources that are normally protected from an application or user.
Weakness: CWE-829
Which versions are affected by CVE-2026-3991?
How do I fix CVE-2026-3991?
No fix has been published for CVE-2026-3991 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-3991 being exploited?
There is no known exploitation of CVE-2026-3991 in the wild and no public exploit code.
Sources
Also known as GHSA-6r2p-x2m4-j49c.