CVEvulnerability

CVE-2020-26941

5.5 MEDIUM Published 2021-01-26 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-01-26
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CVSS 2.0 ([email protected])
3.6 LOW — AV:L/AC:L/Au:N/C:N/I:P/A:P
Weaknesses
CWE-276

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.

Affected configurations

• eset endpoint antivirus (<= 7.3) • eset endpoint security (<= 7.3) • eset file security (<= 7.2) • eset internet security (<= 13.2) • eset internet security 1294 • eset mail security (<= 7.2) • eset nod32 antivirus (<= 7.3) • eset nod32 antivirus (<= 13.2) • eset security (<= 7.2) • eset smart security (<= 7.3) • eset smart security (<= 13.2)

Related

Weakness · CWE (1)

  • CWE-276 Incorrect Default Permissions weakness

References