CVE-2021-36942
HIGHCVSS 7.5/10Actively ExploitedEPSS 66.02%
Last modified
CVE-2021-36942 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Windows LSA Spoofing Vulnerability. CISA has confirmed active exploitation in the wild. EPSS estimates a 66.02% chance of exploitation in the next 30 days.
Description
Windows LSA Spoofing Vulnerability
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Exploitation Status
This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Microsoft | Windows Server 2004 | < 10.0.19041.1165 | — |
| Microsoft | Windows Server 2008 | All versions | Sp2 |
| Microsoft | Windows Server 2008 | r2 | Sp1 |
| Microsoft | Windows Server 2012 | All versions | — |
| Microsoft | Windows Server 2012 | r2 | — |
| Microsoft | Windows Server 2016 | < 10.0.14393.4583 | — |
| Microsoft | Windows Server 2019 | < 10.0.17763.2114 | — |
| Microsoft | Windows Server 20h2 | < 10.0.19042.1165 | — |
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36942Patch, Vendor Advisory
- https://www.kb.cert.org/vuls/id/405600Exploit, Third Party Advisory, US Government Resource
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36942Patch, Vendor Advisory
- https://www.kb.cert.org/vuls/id/405600Exploit, Third Party Advisory, US Government Resource
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-36942US Government Resource
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2021-36942?
Windows LSA Spoofing Vulnerability
How severe is CVE-2021-36942?
CVE-2021-36942 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 66.02% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.
How do I fix CVE-2021-36942?
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.
Are you affected by CVE-2021-36942?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST