Network service interruption via unreleased memory
Published Jul 14, 2026 · Updated Jul 14, 2026
Memory-release failure in Microsoft Windows Cryptographic Services allows remote attackers to interrupt affected systems over a network. Cryptographic Services retains allocated memory after its effective lifetime instead of releasing it for reuse; Microsoft has not disclosed the triggering request or code path. No authentication or user interaction is required, and published material does not identify whether the interruption is a hang, crash, or other loss of availability.
Summary
What happened
Memory-release failure in Microsoft Windows Cryptographic Services allows remote attackers to interrupt affected systems over a network. Cryptographic Services retains allocated memory after its effective lifetime instead of releasing it for reuse; Microsoft has not disclosed the triggering request or code path. No authentication or user interaction is required, and published material does not identify whether the interruption is a hang, crash, or other loss of availability.
The record
- CVE
- CVE-2026-44806
- Published
- Jul 14, 2026
- Updated
- Jul 14, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-401, T1499.004
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 14, 2026CVE publishedPublication date reported by the CVE source.
- Jul 14, 2026Record 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 <10.0.17763.9020
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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