Is CVE-2011-2005 actively exploited?

Yes. CVE-2011-2005 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2011-2005 be exploited remotely?

The attack vector of CVE-2011-2005 has not been classified yet.

What is the CVSS score of CVE-2011-2005?

CVE-2011-2005 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2011-2005

HIGHCISA KEVIN THE WILD

CVE-2011-2005

Published: March 28, 2022

EPSS:67.09%probability of exploitation in 30 daysPercentile:98.5th

Official Description

afd.sys in the Ancillary Function Driver in Microsoft Windows does not properly validate user-mode input passed to kernel mode, which allows local users to gain privileges via a crafted application.

NVD Source

CISA KEV Advisory

Microsoft Ancillary Function Driver (afd.sys) Improper Input Validation Vulnerability

afd.sys in the Ancillary Function Driver in Microsoft Windows does not properly validate user-mode input passed to kernel mode, which allows local users to gain privileges via a crafted application.

Added to KEV: 2022-03-28Federal patch deadline: 2022-04-18

Required Action (CISA)

Apply updates per vendor instructions.

Risk Analysis

The afd.sys driver in Microsoft Windows fails to properly validate user-mode input passed to kernel mode, allowing local users to gain privileges via a crafted application. The high EPSS score of 0.67089 indicates a high likelihood of exploitation, and its presence in CISA's KEV confirms active exploitation.

This vulnerability is actively exploited in the wild, as confirmed by its inclusion in CISA's KEV. Exploitation requires local access and a crafted application.

Recommended Action

Microsoft Windows users should apply the latest security updates to patch the afd.sys driver. Implement principle of least privilege and ensure only trusted applications are run.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2011-2005 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2011-2005 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.