CVE-2011-2003 is a critical buffer overflow vulnerability in the win32k.sys kernel-mode driver affecting multiple Microsoft Windows versions, including XP, Vista, and Server 2003/2008/R2. This flaw allows remote attackers to execute arbitrary code by tricking a user into opening a specially crafted .fon font file. With a CVSS score of 9.3, it presents a high risk due to its network-based attack vector, medium complexity, and complete compromise of confidentiality, integrity, and availability. While not listed in CISA's KEV catalog or showing significant community discussion, a Proof-of-Concept exploit is publicly available on ExploitDB, indicating its potential for exploitation.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
All Versions ImpactedCPE matchmatch criteria | cpe:2.3:o:microsoft:windows_2003_server:*:sp2:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:microsoft:windows_7:-:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:microsoft:windows_7:-:sp1:x64:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:microsoft:windows_7:-:sp1:x86:*:*:*:*:* | ||
All Versions ImpactedCPE matchmatch criteria | cpe:2.3:o:microsoft:windows_server_2003:*:sp2:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:M/Au:N/C:C/I:C/A:C
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.