Raw vector
CVSS:3.1/AV:L/AC:H/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-2023-28218 is a high-severity Heap-based Buffer Overflow (CWE-122) vulnerability in Microsoft Windows Server 2008. Its CVSS base score is 7.0 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Data Obfuscation (T1001); ranked in the top 4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV 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.
The vulnerability CVE-2023-28218 is an elevation of privilege flaw in the Windows Ancillary Function Driver for WinSock, carrying a CVSS 3.1 score of 7.0 with the vector AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H and linked to CWE-122. It affects the WinSock driver component within Windows operating systems.
A local attacker already holding low-privileged access on a system can exploit the issue to obtain high privileges over confidentiality, integrity, and availability, although successful exploitation requires high attack complexity and no user interaction.
Microsoft has published mitigation details and patch information for this vulnerability in its security update guide at the referenced MSRC advisory URL.
The associated EPSS score stands at 0.3040 with no indicated rise from a lower baseline.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-31926
Vulnerability Data
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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V1.4.1
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 heap-overflow flaws but does not prevent their introduction in code.
Timely patching removes known heap-overflow instances after they exist.
Secure-development practices directly require bounds checking and safe memory handling that prevent heap overflows.
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.