Authenticated service interruption via null pointer dereference
Published Aug 11, 2026 · Updated Aug 25, 2026
Null pointer dereference in Microsoft Remote Registry Service allows remote authenticated users to interrupt affected Windows systems. Microsoft identifies the Remote Registry Service as the failing component but has not disclosed the request field or code path that dereferences the null pointer. Exploitation requires network access, low-privilege authentication, and a reachable Remote Registry Service, and the documented consequence is availability loss only.
Summary
What happened
Null pointer dereference in Microsoft Remote Registry Service allows remote authenticated users to interrupt affected Windows systems. Microsoft identifies the Remote Registry Service as the failing component but has not disclosed the request field or code path that dereferences the null pointer. Exploitation requires network access, low-privilege authentication, and a reachable Remote Registry Service, and the documented consequence is availability loss only.
The record
- CVE
- CVE-2026-61345
- Published
- Aug 11, 2026
- Updated
- Aug 25, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-476, T1499
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 11, 2026CVE publishedPublication date reported by the CVE source.
- Aug 25, 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 <10.0.17763.9121
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.
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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