Unauthenticated TLS server crash via crafted traffic
Published Sep 13, 2022 · Updated Mar 11, 2025
Denial of service in Microsoft Windows Secure Channel allows remote attackers to crash a TLS server with crafted network traffic. Microsoft has not published the faulty Secure Channel operation or malformed TLS field that triggers the crash. The target must expose a TLS server that uses Secure Channel; exploitation requires no authentication and can interrupt that service while disclosing one byte of kernel memory.
Summary
What happened
Denial of service in Microsoft Windows Secure Channel allows remote attackers to crash a TLS server with crafted network traffic. Microsoft has not published the faulty Secure Channel operation or malformed TLS field that triggers the crash. The target must expose a TLS server that uses Secure Channel; exploitation requires no authentication and can interrupt that service while disclosing one byte of kernel memory.
The record
- CVE
- CVE-2022-30196
- Published
- Sep 13, 2022
- Updated
- Mar 11, 2025
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- T1499.004
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 13, 2022CVE publishedPublication date reported by the CVE source.
- Mar 11, 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=10.0.17763.0 <10.0.17763.3406
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.
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Technologies
Your stack
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Your stack
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