KEV · Actively exploited
CVE-2021-36934
CVE-2021-36934 is actively exploited (CISA KEV catalog) : high severity (CVSS 7.8), 0 tracked apps concerned, none still exposed on their current version.
- Severity (CVSS)
- 7.8
- Exploitation
- Confirmed
- Tracked apps
- 0
- Still exposed
- 0
NVD scale
CISA KEV · EPSS predicts 67.3 %
An elevation of privilege vulnerability exists because of overly permissive Access Control Lists (ACLs) on multiple system files, including the Security Accounts Manager (SAM) database. An attacker who successfully exploited this vulnerability could run arbitrary code with SYSTEM privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.
An attacker must have the ability to execute code on a victim system to exploit this vulnerability.
After installing this security update, you must manually delete all shadow copies of system files, including the SAM database, to fully mitigate this vulnerabilty. Simply installing this security update will not fully mitigate this vulnerability. See KB5005357- Delete Volume Shadow Copies.
Show raw CVSS vector
CISA Known Exploited Vulnerability
- Added to KEV
- 2022-02-10
- Remediation deadline
- 2022-02-24
- Required action
- Apply updates per vendor instructions.
- Ransomware
- Unknown (not documented by CISA)
OS versions that fix this CVE
This CVE is resolved by the following OS security releases. Update the OS to at least the listed version.
- Windows 10 21H1 · 2021-H1 Fixed in 10.0.19043.1165
- Windows 10 20H2 · 2020-H2 Fixed in 10.0.19042.1165
- Windows 10 2004 · 2020-04 Fixed in 10.0.19041.1165
- Windows 10 1909 · 2019-09 Fixed in 10.0.18363.1734
- Windows 10 1809 · 2018-09 Fixed in 10.0.17763.2114
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