November 14, 2026

CVE Watchtower

CVE-2021-37851ESET, spol. s r.o. ESET NOD32 Antivirus

NVD

Vulnerability Summary

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.
Severity Level
HIGH(7.3)
Published Date
May 11, 2022
Last Modified
Sep 16, 2024
Exploitation Status
No confirmed exploitation yet
Root Weakness (CWE)
CWE-280 β†—
See the MITRE CWE entry for the full definition of this weakness.
CVSS v3.1 Base Metrics — Score 7.3 (HIGH)
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Attack VectorLocal
Attack ComplexityLow
Privileges RequiredLow
User InteractionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

Affected & Patched Versions

Affected Versions
  • ESET, spol. s r.o. ESET NOD32 Antivirus >= 11.2 and < 15.1.12.0
  • ESET, spol. s r.o. ESET Internet Security >= 11.2 and < 15.1.12.0
  • ESET, spol. s r.o. ESET Smart Security Premium >= 11.2 and < 15.1.12.0
  • ESET, spol. s r.o. ESET Endpoint Antivirus >= 6.0 and < 9.0.2046.0
  • ESET, spol. s r.o. ESET Endpoint Security >= 6.0 and < 9.0.2046.0
  • ESET, spol. s r.o. ESET Server Security for Microsoft Windows Server >= 8.0 and < 9.0.12012.0
  • ESET, spol. s r.o. ESET File Security for Microsoft Windows Server 6.0 8.0.12013.0
  • ESET, spol. s r.o. ESET Mail Security for Microsoft Exchange Server >= 6.0 and < 8.0.10020.0
  • ESET, spol. s r.o. ESET Mail Security for IBM Domino >= 6.0 and < 8.0.14011.0
  • ESET, spol. s r.o. ESET Security for Microsoft SharePoint Server >= 6.0 and < 8.0.15009.0
Patched Versions
  • ESET, spol. s r.o. ESET NOD32 Antivirus 15.1.12.0
  • ESET, spol. s r.o. ESET Internet Security 15.1.12.0
  • ESET, spol. s r.o. ESET Smart Security Premium 15.1.12.0
  • ESET, spol. s r.o. ESET Endpoint Antivirus 9.0.2046.0
  • ESET, spol. s r.o. ESET Endpoint Security 9.0.2046.0
  • ESET, spol. s r.o. ESET Server Security for Microsoft Windows Server 9.0.12012.0
  • ESET, spol. s r.o. ESET Mail Security for Microsoft Exchange Server 8.0.10020.0
  • ESET, spol. s r.o. ESET Mail Security for IBM Domino 8.0.14011.0
  • ESET, spol. s r.o. ESET Security for Microsoft SharePoint Server 8.0.15009.0

What to do

Plan remediation soon. No exploitation is confirmed yet, but the severity is high.

  1. Check whether you run ESET, spol. s r.o. ESET NOD32 Antivirus and which version.
  2. Update to a patched version listed above, then confirm the new version.

Timeline

  • May 11, 2022Published
  • Sep 16, 2024Record last modified

Score, severity and exploitation changes are tracked from the day Watchtower started logging them.

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External References

Data last checked: Nov 14, 2026 05:11 UTC