Local privilege escalation via integer underflow
Published Feb 9, 2022 · Updated Jan 2, 2025
Integer underflow in Microsoft Windows Named Pipe File System allows local users to elevate privileges on affected Windows systems. Microsoft maps the flaw to integer underflow but has not disclosed the faulty NPFS routine, untrusted value, or incorrect arithmetic operation. Low-privileged local access is required; successful exploitation grants higher privileges, while the resulting security context is undisclosed.
Summary
What happened
Integer underflow in Microsoft Windows Named Pipe File System allows local users to elevate privileges on affected Windows systems. Microsoft maps the flaw to integer underflow but has not disclosed the faulty NPFS routine, untrusted value, or incorrect arithmetic operation. Low-privileged local access is required; successful exploitation grants higher privileges, while the resulting security context is undisclosed.
The record
- CVE
- CVE-2022-22715
- Published
- Feb 9, 2022
- Updated
- Jan 2, 2025
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-191, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 9, 2022CVE publishedPublication date reported by the CVE source.
- Jan 2, 2025Record 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 <10.0.17763.2565
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.
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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