CVE-2021-37851

Local Privilege Escalation in ESET product for Windows

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

< 1%

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Local privilege escalation in Windows products of ESET allows user who is logged into the system to exploit repair feature of the installer to run malicious code with higher privileges. This issue affects: ESET, spol. s r.o. ESET NOD32 Antivirus 11.2 versions prior to 15.1.12.0. ESET, spol. s r.o. ESET Internet Security 11.2 versions prior to 15.1.12.0. ESET, spol. s r.o. ESET Smart Security Premium 11.2 versions prior to 15.1.12.0. ESET, spol. s r.o. ESET Endpoint Antivirus 6.0 versions prior to 9.0.2046.0; 6.0 versions prior to 8.1.2050.0; 6.0 versions prior to 8.0.2053.0. ESET, spol. s r.o. ESET Endpoint Security 6.0 versions prior to 9.0.2046.0; 6.0 versions prior to 8.1.2050.0; 6.0 versions prior to 8.0.2053.0. ESET, spol. s r.o. ESET Server Security for Microsoft Windows Server 8.0 versions prior to 9.0.12012.0. ESET, spol. s r.o. ESET File Security for Microsoft Windows Server 8.0.12013.0. ESET, spol. s r.o. ESET Mail Security for Microsoft Exchange Server 6.0 versions prior to 8.0.10020.0. ESET, spol. s r.o. ESET Mail Security for IBM Domino 6.0 versions prior to 8.0.14011.0. ESET, spol. s r.o. ESET Security for Microsoft SharePoint Server 6.0 versions prior to 8.0.15009.0.

Una escalada local de privilegios en los productos Windows de ESET permite al usuario que ha iniciado sesión en el sistema explotar la funcionalidad repair del instalador para ejecutar código malicioso con privilegios superiores. Este problema afecta: ESET, spol. s r.o. ESET NOD32 Antivirus 11.2 versiones anteriores a 15.1.12.0. ESET, spol. s r.o. ESET Internet Security 11.2 versiones anteriores a 15.1.12.0. ESET, spol. s r.o. ESET Smart Security Premium 11.2 versiones anteriores a 15.1.12.0. ESET, spol. s r.o. ESET Endpoint Antivirus 6.0 versiones anteriores a 9.0.2046.0; 6.0 versiones anteriores a 8.1.2050.0; 6.0 versiones anteriores a 8.0.2053.0. ESET, spol. s r.o. ESET Endpoint Security 6.0 versiones anteriores a 9.0.2046.0; 6.0 versiones anteriores a 8.1.2050.0; 6.0 versiones anteriores a 8.0.2053.0. ESET, spol. s r.o. ESET Server Security para Microsoft Windows Server 8.0 versiones anteriores a 9.0.12012.0. ESET, spol. s r.o. ESET File Security para Microsoft Windows Server 8.0.12013.0. ESET, spol. s r.o. ESET Mail Security para Microsoft Exchange Server 6.0 versiones anteriores a 8.0.10020.0. ESET, spol. s r.o. ESET Mail Security para IBM Domino 6.0 versiones anteriores a 8.0.14011.0. ESET, spol. s r.o. ESET Security para Microsoft SharePoint Server 6.0 versiones anteriores a 8.0.15009.0

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-08-02 CVE Reserved
2022-05-11 CVE Published
2024-09-16 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-280: Improper Handling of Insufficient Permissions or Privileges
CWE-755: Improper Handling of Exceptional Conditions

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://support.eset.com/en/ca8268	2022-05-19

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Affected Vendors, Products, and Versions (15)

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Eset Search vendor "Eset"		Endpoint Antivirus Search vendor "Eset" for product "Endpoint Antivirus"				>= 6.0 < 8.0.2053.0 Search vendor "Eset" for product "Endpoint Antivirus" and version " >= 6.0 < 8.0.2053.0"		windows		Affected
Eset Search vendor "Eset"		Endpoint Antivirus Search vendor "Eset" for product "Endpoint Antivirus"				>= 8.1 < 8.1.2050.0 Search vendor "Eset" for product "Endpoint Antivirus" and version " >= 8.1 < 8.1.2050.0"		windows		Affected
Eset Search vendor "Eset"		Endpoint Antivirus Search vendor "Eset" for product "Endpoint Antivirus"				>= 9.0 < 9.0.2046.0 Search vendor "Eset" for product "Endpoint Antivirus" and version " >= 9.0 < 9.0.2046.0"		windows		Affected
Eset Search vendor "Eset"		Endpoint Security Search vendor "Eset" for product "Endpoint Security"				>= 6.0 < 8.0.2053.0 Search vendor "Eset" for product "Endpoint Security" and version " >= 6.0 < 8.0.2053.0"		windows		Affected
Eset Search vendor "Eset"		Endpoint Security Search vendor "Eset" for product "Endpoint Security"				>= 8.1 < 8.1.2050.0 Search vendor "Eset" for product "Endpoint Security" and version " >= 8.1 < 8.1.2050.0"		windows		Affected
Eset Search vendor "Eset"		Endpoint Security Search vendor "Eset" for product "Endpoint Security"				>= 9.0 < 9.0.2046.0 Search vendor "Eset" for product "Endpoint Security" and version " >= 9.0 < 9.0.2046.0"		windows		Affected
Eset Search vendor "Eset"		File Security Search vendor "Eset" for product "File Security"				>= 6.0 < 8.0.12013.0 Search vendor "Eset" for product "File Security" and version " >= 6.0 < 8.0.12013.0"		windows_server		Affected
Eset Search vendor "Eset"		Internet Security Search vendor "Eset" for product "Internet Security"				>= 11.2 < 15.1.12.0 Search vendor "Eset" for product "Internet Security" and version " >= 11.2 < 15.1.12.0"		windows		Affected
Eset Search vendor "Eset"		Mail Security Search vendor "Eset" for product "Mail Security"				>= 6.0 < 8.0.10020.0 Search vendor "Eset" for product "Mail Security" and version " >= 6.0 < 8.0.10020.0"		exchange_server		Affected
Eset Search vendor "Eset"		Mail Security Search vendor "Eset" for product "Mail Security"				>= 6.0 < 8.0.14011.0 Search vendor "Eset" for product "Mail Security" and version " >= 6.0 < 8.0.14011.0"		domino		Affected

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