CVE-2020-26941

MEDIUM

ESET <version> - Privilege Escalation

Title source: llm
STIX 2.1

Description

A local (authenticated) low-privileged user can exploit a behavior in an ESET installer to achieve arbitrary file overwrite (deletion) of any file via a symlink, due to insecure permissions. The possibility of exploiting this vulnerability is limited and can only take place during the installation phase of ESET products. Furthermore, exploitation can only succeed when Self-Defense is disabled. Affected products are: ESET NOD32 Antivirus, ESET Internet Security, ESET Smart Security, ESET Smart Security Premium versions 13.2 and lower; ESET Endpoint Antivirus, ESET Endpoint Security, ESET NOD32 Antivirus Business Edition, ESET Smart Security Business Edition versions 7.3 and lower; ESET File Security for Microsoft Windows Server, ESET Mail Security for Microsoft Exchange Server, ESET Mail Security for IBM Domino, ESET Security for Kerio, ESET Security for Microsoft SharePoint Server versions 7.2 and lower.

Scores

CVSS v3 5.5
EPSS 0.0033
EPSS Percentile 24.9%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Details

CWE
CWE-276
Status published
Products (11)
eset/endpoint_antivirus < 7.3
eset/endpoint_security < 7.3
eset/file_security < 7.2
eset/internet_security 1294
eset/internet_security < 13.2
eset/mail_security < 7.2 (2 CPE variants)
eset/nod32_antivirus < 13.2
eset/nod32_antivirus < 7.3
eset/security < 7.2 (2 CPE variants)
eset/smart_security < 13.2 (2 CPE variants)
... and 1 more
Published Jan 26, 2021
Tracked Since Feb 18, 2026