CVE-2022-21911
.NET Framework Denial of Service Vulnerability
7.5 High
.NET Framework Denial of Service Vulnerability
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
3.23%Up 1.0 points since Feb 8, 2022
What each source reports
CVE List Score used
.NET Framework Denial of Service Vulnerability
.NET Framework Denial of Service Vulnerability
- Record
CVE-2022-21911- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
EUVDEUVD-2022-27067
.NET Framework Denial of Service Vulnerability
- Record
EUVD-2022-27067- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-hjxm-5f5m-prmm
.NET Framework Denial of Service Vulnerability.
.NET Framework Denial of Service Vulnerability.
- Record
GHSA-hjxm-5f5m-prmm- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
NVD
.NET Framework Denial of Service Vulnerability
- Record
CVE-2022-21911- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Updated
- 2026-11-02
Affected products
- microsoft .net framework
- microsoft .net framework 2.0 service pack 2
- microsoft .net framework 3.5
- microsoft .net framework 3.5 and 4.6.2/4.7/4.7.1/4.7.2
- microsoft .net framework 3.5 and 4.7.2
- microsoft .net framework 3.5 and 4.8
- microsoft .net framework 3.5.1
- microsoft .net framework 4.5.2
- microsoft .net framework 4.6
- microsoft .net framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2
- microsoft .net framework 4.8
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2022-21911 is a high vulnerability (CVSS 7.5) in Microsoft .net Framework, published January 11, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.23%, the 88th percentile. No source names a fixed version.