CVE-2021-37852
HIGHCVSS 7.8/10EPSS 0.57%
Last modified
CVE-2021-37852 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 0.57% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Eset | Endpoint Antivirus | >= 6.6.2046.0, < 7.3.2055.0 |
| Eset | Endpoint Antivirus | >= 8.0, < 8.0.2028.3 |
| Eset | Endpoint Antivirus | >= 8.1, < 8.1.2031.4 |
| Eset | Endpoint Antivirus | >= 9.0, < 9.0.2032.6 |
| Eset | Endpoint Security | >= 6.6.2046.0, < 7.3.2055.0 |
| Eset | Endpoint Security | >= 8.0, < 8.0.2028.3 |
| Eset | Endpoint Security | >= 8.1, < 8.1.2031.4 |
| Eset | Endpoint Security | >= 9.0, < 9.0.2032.6 |
| Eset | File Security | >= 7.0.12014.0, <= 7.3.12006.0 |
| Eset | Internet Security | >= 10.0.337.1, < 15.0.18.0 |
| Eset | Mail Security | >= 7.0.10019, < 7.3.10014.0 |
| Eset | Mail Security | >= 7.0.14008.0, < 7.3.14003.0 |
| Eset | Mail Security | >= 8.0, < 8.0.14006.0 |
| Eset | Mail Security | >= 8.0.10012.0, < 8.0.10018.0 |
| Eset | Nod32 Antivirus | >= 10.0.337.1, <= 15.0.18.0 |
| Eset | Security | >= 7.0.15008.0, <= 8.0.15004.0 |
| Eset | Server Security | >= 7.0.12016.1002, <= 7.2.12004.1000 |
| Eset | Server Security | 8.0.12003.0 |
| Eset | Server Security | 8.0.12003.1 |
| Eset | Smart Security | >= 10.0.337.1, <= 15.0.18.0 |
References
- https://www.zerodayinitiative.com/advisories/ZDI-22-148/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-22-148/Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-37852?
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.
How severe is CVE-2021-37852?
CVE-2021-37852 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.57% probability of exploitation in the next 30 days.
How do I fix CVE-2021-37852?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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