Unauthenticated service interruption via out-of-bounds read
Published Jul 14, 2026 · Updated Jul 14, 2026
Out-of-bounds read in Windows Network Policy Server SNMP allows remote attackers to interrupt the service over a network. Microsoft identifies the affected locus only as the NPS SNMP implementation and has not disclosed which request field triggers the read or how the invalid bound is calculated. No privileges or user interaction are required; the published CVSS vector reports availability loss rather than information disclosure, despite the source description.
Summary
What happened
Out-of-bounds read in Windows Network Policy Server SNMP allows remote attackers to interrupt the service over a network. Microsoft identifies the affected locus only as the NPS SNMP implementation and has not disclosed which request field triggers the read or how the invalid bound is calculated. No privileges or user interaction are required; the published CVSS vector reports availability loss rather than information disclosure, despite the source description.
The record
- CVE
- CVE-2026-50496
- Published
- Jul 14, 2026
- Updated
- Jul 14, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-125, 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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