Unauthenticated denial of service
Published Jan 11, 2022 · Updated Jan 2, 2025
Denial of service in Microsoft .NET Framework allows remote attackers to interrupt affected applications through unauthenticated network input. Microsoft has not published the affected component or the operation performed incorrectly on attacker-controlled input. Exploitation requires network reachability to an application that exposes the affected framework path and can terminate or become unavailable without reading or altering data.
Summary
What happened
Denial of service in Microsoft .NET Framework allows remote attackers to interrupt affected applications through unauthenticated network input. Microsoft has not published the affected component or the operation performed incorrectly on attacker-controlled input. Exploitation requires network reachability to an application that exposes the affected framework path and can terminate or become unavailable without reading or altering data.
The record
- CVE
- CVE-2022-21911
- Published
- Jan 11, 2022
- Updated
- Jan 2, 2025
- Vendor
- Microsoft
- Product
- Microsoft .NET Framework 3.5 and 4.8
- Classifications
- T1499
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 11, 2022CVE publishedPublication date reported by the CVE source.
- Jan 2, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=4.8.0 <4.8.4465.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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