CVE-2021-31962
9.4
CRITICAL · CVSS 3.1 · EPSS 3.8% (pctl 90)
In your normal cycle
Critical by CVSS (9.4), but no sign of active exploitation.
Description
Kerberos AppContainer Security Feature Bypass Vulnerability
Scoring
| CVSS | 9.4 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L |
| EPSS | 3.81% — more likely to be exploited than 90% of all CVEs |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2021-06-08 |
| Last modified | 2026-06-17 |
Affected (8)
| Vendor | Product |
|---|---|
| microsoft | windows 10 |
| microsoft | windows 7 |
| microsoft | windows 8.1 |
| microsoft | windows rt 8.1 |
| microsoft | windows server 2008 |
| microsoft | windows server 2012 |
| microsoft | windows server 2016 |
| microsoft | windows server 2019 |
References
- http://packetstormsecurity.com/files/163206/Windows-Kerberos-AppContainer-Enterprise-Authentication-Capability-Bypass.html
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31962
- http://packetstormsecurity.com/files/163206/Windows-Kerberos-AppContainer-Enterprise-Authentication-Capability-Bypass.html
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31962
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