CVE-2011-2003 in the critical feed json
Buffer overflow in win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, W…
published 2011-10-12 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-1997
- cvss
- 9.3
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 26.6%
- EPSS 26.6% chance of exploitation in 30 days, percentile 98%
- public exploits
- 1
- Exploit-DB
Summary
Buffer overflow in win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows remote attackers to execute arbitrary code via a crafted .fon file, aka "Font Library File Buffer Overrun Vulnerability."
Timeline
- Published
- First public exploit (EDB-17978)
Exploit prediction
26.56% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- EDB-17978 Microsoft Windows - '.fon' Kernel-Mode Buffer Overrun (PoC) (MS11-077) dos, 2011-10-13
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
-
docs.microsoft.com
/en-us/security-updates/securitybulletins/2011/ms11-077
vendor-advisory
-
securitytracker.com
/id?1026165
vdb-entry
-
securityreason.com
/securityalert/8473
third-party-advisory
-
oval.cisecurity.org
/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13103
vdb-entry, signature
Sources
- CVE List CVE-2011-2003
- NVD CVE-2011-2003
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