Microsoft Ancillary Function Driver (afd.sys) Improper Input Validation Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 28/03/2022. Patch affected systems as an emergency.
| Package | Affected versions | Patched versions |
|---|---|---|
| Ancillary Function Driver (afd.sys) | Versions not published yet (product named by CISA KEV) | |
afd.sys in the Ancillary Function Driver in Microsoft Windows XP SP2 and SP3 and Server 2003 SP2 does not properly validate user-mode input passed to kernel mode, which allows local users to gain privileges via a crafted application, aka "Ancillary Function Driver Elevation of Privilege Vulnerability."
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