CVE-2021-31199
MEDIUMCVSS 5.2/10Actively ExploitedEPSS 2.95%
Last modified
CVE-2021-31199 is a medium-severity vulnerability rated 5.2/10 on the CVSS scale. Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability. CISA has confirmed active exploitation in the wild. EPSS estimates a 2.95% chance of exploitation in the next 30 days.
Description
Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/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 10 1507 | < 10.0.10240.18967 | — |
| Microsoft | Windows 10 1607 | < 10.0.14393.4467 | — |
| Microsoft | Windows 10 1809 | < 10.0.17763.1999 | — |
| Microsoft | Windows 10 1909 | < 10.0.18363.1621 | — |
| Microsoft | Windows 10 2004 | < 10.0.19041.1052 | — |
| Microsoft | Windows 10 20h2 | < 10.0.19042.1052 | — |
| Microsoft | Windows 10 21h1 | < 10.0.19043.1052 | — |
| Microsoft | Windows 7 | All versions | Sp1 |
| Microsoft | Windows 8.1 | All versions | — |
| Microsoft | Windows Rt 8.1 | All versions | — |
| Microsoft | Windows Server 2004 | < 10.0.19041.1052 | — |
| 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 | < 10.0.14393.4467 | — |
| Microsoft | Windows Server 2019 | < 10.0.17763.1999 | — |
| Microsoft | Windows Server 20h2 | < 10.0.19042.1052 | — |
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31199Patch, Vendor Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31199Patch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-31199US Government Resource
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2021-31199?
Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability
How severe is CVE-2021-31199?
CVE-2021-31199 has a CVSS score of 5.2/10 (MEDIUM severity). The EPSS model estimates a 2.95% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.
How do I fix CVE-2021-31199?
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-2021-31199?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST