Overview
- Description
- 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."
- Source
- secure@microsoft.com
- NVD status
- Analyzed
Social media
- Hype score
- Not currently trending
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 7.8
- Impact score
- 5.9
- Exploitability score
- 1.8
- Vector string
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Severity
- HIGH
CVSS 2.0
- Type
- Primary
- Base score
- 7.2
- Impact score
- 10
- Exploitability score
- 3.9
- Vector string
- AV:L/AC:L/Au:N/C:C/I:C/A:C
Known exploits
Data from CISA
- Vulnerability name
- Microsoft Ancillary Function Driver (afd.sys) Improper Input Validation Vulnerability
- Exploit added on
- Mar 28, 2022
- Exploit action due
- Apr 18, 2022
- Required action
- Apply updates per vendor instructions.
Weaknesses
- nvd@nist.gov
- NVD-CWE-noinfo
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2003:-:sp2:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1D929AA2-EE0B-4AA1-805D-69BCCA11B77F"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_xp:-:sp2:*:*:professional:*:x64:*",
"vulnerable": true,
"matchCriteriaId": "C6109348-BC79-4ED3-8D41-EA546A540C79"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_xp:-:sp3:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C9392D35-7BF5-48E9-879B-BBDE9A9E9AB9"
}
],
"operator": "OR"
}
]
}
]