Vulnerability in Microsoft Windows 10 1809
CVE-2024-21338
Windows Kernel Elevation of Privilege Vulnerability
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.598 (99.1th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.598 · newest: 0.598 · change: 0.000
Affected products
- Microsoft Windows 10 1809
- Microsoft Windows 10 21h2
- Microsoft Windows 10 22h2
- Microsoft Windows 10 Version 1809 — versions 10.0.17763.0, 10.0.0
- Microsoft Windows 10 Version 21h2 — versions 10.0.19043.0
- Microsoft Windows 10 Version 22h2 — versions 10.0.19045.0
- Microsoft Windows 11 21h2
- Microsoft Windows 11 22h2
- Microsoft Windows 11 23h2
- Microsoft Windows 11 Version 21h2 — versions 10.0.0
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Known ransomware campaign use: yes.
Public proof-of-concept exploits
References
- msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21338 (vendor-advisory, Patch, patch, Vendor Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Exploit, Technical Description, Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Exploit, VDB Entry)
- af854a3a-2127-422b-91ae-364da2661108 (Exploit, VDB Entry)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2024-21338?
- CVE-2024-21338 is a high-severity vulnerability in Microsoft Windows 10 1809, classified under Untrusted Pointer Dereference. CVSS score: 7.8/10. Published 2024-02-13.
- How severe is CVE-2024-21338?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2024-21338 known to be exploited?
- Yes. CVE-2024-21338 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2024-03-04), indicating it is being actively exploited. 34 public proof-of-concept repositories are indexed.