CVE-2022-41125
Memory Safety in Microsoft Windows 8.1
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HCVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.
Summary
CVE-2022-41125 is a high-severity Out-of-bounds Write (CWE-787) vulnerability in Microsoft Windows 8.1. Its CVSS base score is 7.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Security Account Manager (T1003.002); ranked in the top 13% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
Windows CNG Key Isolation Service contains an out-of-bounds write vulnerability tracked as CVE-2022-41125 that permits local elevation of privilege. The flaw affects the Cryptography Next Generation key isolation component in supported Windows releases and carries a CVSS 3.1 score of 7.8 reflecting local attack vector, low complexity, and low required privileges.
An authenticated local attacker can trigger the flaw to obtain SYSTEM-level privileges, thereby gaining full control over the affected system including the ability to read, modify, or delete arbitrary data. Exploitation requires no user interaction beyond the ability to run code on the target host.
Microsoft’s security update guide provides patches addressing the issue, and the vulnerability appears in CISA’s catalog of known exploited vulnerabilities, confirming observed in-the-wild use. The associated EPSS score rose from a low baseline to a recorded peak of 0.0164, indicating increased exploitation interest after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-44368
Vulnerability Data
Windows CNG Key Isolation Service Elevation of Privilege Vulnerability
- CWE(s)
- KEV Date Added
- 08 November 2022
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Vulnerability scanning and recording can discover out-of-bounds write flaws so they can be remediated.
Patching or replacing vulnerable software directly eliminates known instances of this coding weakness.
Secure-development practices (static analysis, bounds checking, code review) are the primary means of preventing out-of-bounds writes.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.