Service interruption via undisclosed Schannel flaw
Published Sep 13, 2022 · Updated Mar 11, 2025
Denial of service in Microsoft Windows Secure Channel allows remote attackers to interrupt TLS-dependent services via network traffic. Microsoft identifies Schannel as the affected component but has not published the malformed input, processing locus, or failing operation. No privileges or user interaction are required; the bounded published impact is loss of availability, not data disclosure or modification.
Summary
What happened
Denial of service in Microsoft Windows Secure Channel allows remote attackers to interrupt TLS-dependent services via network traffic. Microsoft identifies Schannel as the affected component but has not published the malformed input, processing locus, or failing operation. No privileges or user interaction are required; the bounded published impact is loss of availability, not data disclosure or modification.
The record
- CVE
- CVE-2022-35833
- Published
- Sep 13, 2022
- Updated
- Mar 11, 2025
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- 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=10.0.10240.0 <10.0.10240.19444
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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