Remote code execution via undisclosed MSMQ integer overflow
Published Aug 8, 2023 · Updated Aug 10, 2026
Integer overflow in Microsoft Message Queuing on affected Windows releases allows remote attackers to execute arbitrary code. Microsoft has not disclosed the MSMQ parsing locus or the arithmetic operation that overflows while processing network messages. Exploitation requires the Message Queuing service to be installed and network reachable; successful code runs in the service context.
Summary
What happened
Integer overflow in Microsoft Message Queuing on affected Windows releases allows remote attackers to execute arbitrary code. Microsoft has not disclosed the MSMQ parsing locus or the arithmetic operation that overflows while processing network messages. Exploitation requires the Message Queuing service to be installed and network reachable; successful code runs in the service context.
The record
- CVE
- CVE-2023-35385
- Published
- Aug 8, 2023
- Updated
- Aug 10, 2026
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- CWE-190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 8, 2023CVE publishedPublication date reported by the CVE source.
- Aug 10, 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=10.0.10240.0 <10.0.10240.20107
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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