CVE-2022-21907
CriticalExploitedPublic exploitHTTP Protocol Stack Remote Code Execution Vulnerability
Published Feb 9, 2022 · Updated Jan 2, 2025 · Also known as TR-22-0038
Key Facts
Patch immediately- CVE-2022-21907 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Windows 10 (Microsoft), Windows 11 (Microsoft), Windows Server 2019 (Microsoft) and 9 more products.
- It is exploited in the wild, listed in Industry KEV feed since May 7, 2024. Public exploit code is available.
- EPSS estimates a 93% probability of exploitation in the next 30 days.
- Fixed versions are available, including Windows 10 Version 1809 10.0.17763.2452, Windows 10 Version 20H2 10.0.19042.1466, Windows 10 Version 21H1 10.0.19043.1466.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
93%
Higher than 99.8% of all scored CVEs
Exploited in the wild
Yes
1 catalog listing
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2022-21907 brief as a PDF
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Description
HTTP Protocol Stack Remote Code Execution Vulnerability
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | May 7, 2024 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
26 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Windows 10Microsoft | 1809, 20h2, 21h1, 21h2 | n/a |
| Windows 11Microsoft | See advisory | n/a |
| Windows Server 2019Microsoft | >= 10.0.17763.0 | 10.0.17763.2452 |
| Windows ServerMicrosoft | 2022, 20h2 | n/a |
| Windows 10 Version 1809 | >= 10.0.17763.0 | 10.0.17763.2452 |
Patched Releases
Windows 10 Version 1809
10.0.17763.2452
Windows 10 Version 20H2
10.0.19042.1466
Windows 10 Version 21H1
10.0.19043.1466
Windows 10 Version 21H2
10.0.19044.1466
Windows 11 version 21H2
10.0.22000.434
Windows Server 2019
10.0.17763.2452
Windows Server 2019 (Server Core installation)
10.0.17763.2452
Windows Server 2022
10.0.20348.469
Windows Server version 20H2
10.0.19042.1466
Timeline
Publicly disclosed
Feb 9, 2022
Added to Industry KEV feed
May 7, 2024
Last updated
Jan 2, 2025
References
- advisoryhttp://blog.talosintelligence.com/2022/01/adobe-acrobat-vuln-spotlight-.html
- advisoryhttps://blog.qualys.com/vulnerabilities-threat-research/2022/01/11/microsoft-adobe-patch-tuesday-january-2022-microsoft-126-vulnerabilities-with-9-critical-adobe-41-vulnerabilities-22-critical
- advisoryhttps://heimdalsecurity.com/blog/patch-tuesday-february-2022/
- advisoryhttps://isc.sans.edu/diary/rss/28316
- advisoryhttps://msrc-blog.microsoft.com/2022/01/11/coming-soon-new-security-update-guide-notification-system/
FAQ
Common Questions.
HTTP Protocol Stack Remote Code Execution Vulnerability
Affected: Windows 10 (Microsoft) versions 1809, 20h2, 21h1, 21h2; Windows 11 (Microsoft); Windows Server 2019 (Microsoft) versions >= 10.0.17763.0, among others. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since May 7, 2024.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Windows 10 Version 1809 10.0.17763.2452, Windows 10 Version 20H2 10.0.19042.1466, Windows 10 Version 21H1 10.0.19043.1466.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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