CVE-2026-3991

CVE

Threat entity extracted from intelligence sources

Frequency

occurrences

First Seen

April 2, 2026

Last Seen

April 2, 2026

API

Exploited in Wild

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Ransomware Use

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Public Exploits

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Attack Vector

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Vulnerability Overview

Exploitation Activity

Exploitation Intelligence

Critical Symantec DLP Agent Vulnerability Enables Privilege Escalation72.0

A high-severity vulnerability, tracked as CVE-2026-3991, has been identified in the Symantec Data Loss Prevention (DLP) Agent for Windows. Discovered by security researcher Manuel Feifel, this flaw allows low-privileged local attackers to escalate their privileges to the highest level on affected sy...