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Critical Severity|Microsoft
88
SVRS
7.8
CVSSv3
0.28483
EPSS
TAGS
In The WildExploit AvaliableCISA KEV
VECTOR STRING
CVSS:3.1AV:LAC:LPR:LUI:NS:UC:HI:HA:H
PUBLICATION DATE2022-09-13
LAST MODIFIED2026-01-12
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Security Intelligence Brief
What is this vulnerability and why does it matter?
This vulnerability, identified as CVE-2022-37969, is an Elevation of Privilege flaw affecting the Windows Common Log File System Driver. It matters significantly because an attacker can exploit it to gain higher privileges on a compromised system, potentially achieving full system control. The high CVSS score of 7.8 and the fact that active exploits have been published highlight its critical nature and immediate threat to affected systems.
What are the CVSS score, severity level, and disclosure details?
- CVSS Score: 7.8
- Severity Level: High
- Disclosure Details:
- Published: 2022-09-13 18:42:12 UTC
- Modified: 2026-01-12 20:56:32 UTC
Which products, vendors, systems, and versions are affected?
- Vendor: Microsoft
- Products: Microsoft Windows operating systems
- Systems: Systems running the affected versions of the Windows Common Log File System Driver.
- Versions: Specific affected versions of Microsoft Windows are not detailed in the provided CVE data.
What is the technical root cause and attack vector?
The technical root cause of CVE-2022-37969 is categorized as CWE-787, an Out-of-bounds Write vulnerability. This type of flaw occurs when a program attempts to write data beyond the allocated buffer, potentially corrupting adjacent memory or overwriting critical control structures. The attack vector involves exploiting this memory corruption within the Windows Common Log File System Driver, allowing an attacker with initial low-level access to elevate their privileges to a higher level, such as SYSTEM or administrator.
How can this vulnerability be exploited?
This vulnerability can be exploited by an attacker who has already gained some level of access to an affected Windows system. By leveraging the Out-of-bounds Write flaw in the Common Log File System Driver, the attacker can manipulate memory to achieve arbitrary code execution or overwrite data structures that control system privileges. This leads to an Elevation of Privilege, allowing the attacker to gain elevated permissions beyond their initial access. Active exploits for this vulnerability have been published, indicating that the methods for exploitation are known and being used by malicious actors.
What public intelligence references and advisories exist?
The primary public intelligence reference is the CVE identifier itself: CVE-2022-37969. As this is a vulnerability affecting Microsoft Windows, an official security advisory from Microsoft would also exist, providing detailed information, affected products, and mitigation recommendations.
What is the risk assessment and urgency level?
The risk assessment for CVE-2022-37969 is high. This is primarily due to its CVSS score of 7.8 and its nature as an Elevation of Privilege vulnerability, which can allow an attacker to gain full control over an affected system. The urgency level is critical because active exploits have been published to leverage this vulnerability. This means that malicious actors are already actively targeting and exploiting this flaw in the wild, posing an immediate and severe threat to any unpatched systems. Organizations should prioritize patching this vulnerability immediately.
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