CVE-2021-37852LPE in ESET products for Windows
- 7.8HighCVSS base score
- 0.60%Exploitation in 30 daysEPSS · top 51% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
ESET products for Windows allows untrusted process to impersonate the client of a pipe, which can be leveraged by attacker to escalate privileges in the context of NT AUTHORITY\SYSTEM.
Timeline
ID reserved
By ESET
- 6 months later
· 6 months later
Published
- 3 years later
· 3 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| ESETCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.60% · top 51% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 10.0.337.1 – ≤ 15.0.18.0
- affected 10.0.337.1 – ≤ 15.0.18.0
- affected 10.0.337.1 – ≤ 15.0.18.0
ESET · ESET Endpoint Antivirus for Windows
- affected 6.6.2046.0 – ≤ 9.0.2032.4
ESET · ESET Endpoint Security for Windows
- affected 6.6.2046.0 – ≤ 9.0.2032.4
ESET · ESET Server Security for Microsoft Windows Server
- affected 8.0.12003.0 – ≤ 8.0.12003.1
ESET · ESET File Security for Microsoft Windows Server
- affected 7.0.12014.0 – ≤ 7.3.12006.0
ESET · ESET Server Security for Microsoft Azure
- affected 7.0.12016.1002 – ≤ 7.2.12004.1000
ESET · ESET Security for Microsoft SharePoint Server
- affected 7.0.15008.0 – ≤ 8.0.15004.0
ESET · ESET Mail Security for IBM Domino
- affected 7.0.14008.0 – ≤ 8.0.14004.0
ESET · ESET Mail Security for Microsoft Exchange Server
- affected 7.0.10019 – ≤ 8.0.10016.0
What to do
Workaround: The attack surface can also be eliminated by disabling the Enable advanced scanning via AMSI option in ESET products’ Advanced setup. However, ESET strongly recommends performing an upgrade to a fixed product version and only applying this workaround when the upgrade is not possible for an important reason.
References
References2
- https://support.eset.com/en/ca8223-local-privilege-escalation-vulnerability-fixed-in-eset-products-for-windows (opens in a new tab)x_refsource_MISCx_transferred
- https://www.zerodayinitiative.com/advisories/ZDI-22-148/ (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2021-24331 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2021-37852)Record last updated .