CVE-2011-1873 in the critical feed json
win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008…
published 2011-06-16 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-1871
- cvss
- 9.3
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 18.7%
- EPSS 18.7% chance of exploitation in 30 days, percentile 97%
- public exploits
- 0
- none known
Summary
win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 on 64-bit platforms does not properly validate pointers during the parsing of OpenType (aka OTF) fonts, which allows remote attackers to execute arbitrary code via a crafted font file, aka "Win32k OTF Validation Vulnerability."
Exploit prediction
18.70% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-09).
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-20 Improper Input Validation
References
-
docs.microsoft.com
/en-us/security-updates/securitybulletins/2011/ms11-041
vendor-advisory
-
securitytracker.com
/id?1025638
vdb-entry
-
securityfocus.com
/bid/48183
vdb-entry
-
oval.cisecurity.org
/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12725
vdb-entry, signature
-
secunia.com
/advisories/44893
third-party-advisory
-
exchange.xforce.ibmcloud.com
/vulnerabilities/67732
vdb-entry
Sources
- CVE List CVE-2011-1873
- NVD CVE-2011-1873
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.