AEGLIX vulnerability intelligence
CVE-2021-31955
MEDIUM · CVSS 5.5 · Analyzed
Published: 2021-06-08 · Updated: 2026-06-17 · Source: NVD
Vulnerability overview
Windows Kernel Information Disclosure Vulnerability
Severity and scoring
- CVSS score
- 5.5 · MEDIUM
- CVSS version
- 3.1
- CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Weaknesses
- CWE-497, NVD-CWE-noinfo
CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.
Known exploitation and remediation
Listed in CISA’s Known Exploited Vulnerabilities catalog.
- Affected product
- Microsoft · Windows
- Added to catalog
- 2021-11-03
- Required action
- Apply updates per vendor instructions.
- CISA remediation due date
- 2021-11-17
CISA deadlines apply to the organizations covered by its directives. Confirm your own remediation requirements.
Verify affected versions and patch availability in the vendor advisory before making changes.
Affected products and versions
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:*
Before (exclusive): 10.0.17763.1999
cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:*:*
Before (exclusive): 10.0.18363.1621
cpe:2.3:o:microsoft:windows_10_2004:*:*:*:*:*:*:*:*
Before (exclusive): 10.0.19041.1052
cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:*
Before (exclusive): 10.0.19042.1052
cpe:2.3:o:microsoft:windows_10_21h1:*:*:*:*:*:*:*:*
Before (exclusive): 10.0.19043.1052
cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:*:*
Before (exclusive): 10.0.19041.1052
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
Before (exclusive): 10.0.17763.1999
cpe:2.3:o:microsoft:windows_server_20h2:*:*:*:*:*:*:*:*
Before (exclusive): 10.0.19042.1052
These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.
Advisories and references
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31955
Patch · Vendor Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31955
Patch · Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-31955
US Government Resource