Authenticated data modification via RPC Runtime bypass
Published Oct 13, 2021 · Updated Aug 4, 2024
Security feature bypass in Microsoft Windows RPC Runtime allows remote authenticated users to modify protected data over a network. Microsoft's public record identifies the RPC Runtime as the affected component but does not disclose the faulty operation or crafted input that triggers the bypass. Low-privileged access is required, and the published impact is limited to data integrity, with no reported disclosure or service interruption.
Summary
What happened
Security feature bypass in Microsoft Windows RPC Runtime allows remote authenticated users to modify protected data over a network. Microsoft's public record identifies the RPC Runtime as the affected component but does not disclose the faulty operation or crafted input that triggers the bypass. Low-privileged access is required, and the published impact is limited to data integrity, with no reported disclosure or service interruption.
The record
- CVE
- CVE-2021-40460
- Published
- Oct 13, 2021
- Updated
- Aug 4, 2024
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- Unavailable
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 13, 2021CVE publishedPublication date reported by the CVE source.
- Aug 4, 2024Record 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=10.0.0 <10.0.10240.19086
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
No sourced classifications are available.
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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