CVE-2023-2847: Local privilege escalation in ESET products for Linux and MacOS

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-06-15 · updated 2026-06-17
Weakness: CWE-269

Description

During internal security analysis, a local privilege escalation vulnerability has been identified. On a machine with the affected ESET product installed, it was possible for a user with lower privileges due to improper privilege management to trigger actions with root privileges. ESET remedied this possible attack vector and has prepared new builds of its products that are no longer susceptible to this vulnerability.

Affected products

ESET Cyber Security: from 7.3.0 before 7.3.3700.0 — fixed in 7.3.3700.0
ESET Endpoint Antivirus: before 8.1.12.0; from 7.0.0 before 7.3.3600.0; from 9.0.5.0 before 9.0.10.0; from 9.1.4.0 before 9.1.11.0 — fixed in 7.3.3600.0, 8.1.12.0, 9.0.10.0, 9.1.11.0
ESET Server Security: before 8.1.823.0; from 9.0.464.0 before 9.0.466.0; from 9.1.96.0 before 9.1.98.0 — fixed in 8.1.823.0, 9.0.466.0, 9.1.98.0

How to fix

Upgrade to a fixed version: ESET Cyber Security 7.3.3700.0; ESET Endpoint Antivirus 7.3.3600.0, 8.1.12.0, 9.0.10.0, 9.1.11.0; ESET Server Security 8.1.823.0, 9.0.466.0, 9.1.98.0. Check the vendor advisory for mitigations.

References

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