CVE-2011-1886 json
win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP3 does not properly validate the arguments to functions, which allows local…
published 2011-07-13 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-1884
- cvss
- 2.1
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.9%
- EPSS 1.9% chance of exploitation in 30 days, percentile 79%
- public exploits
- 0
- none known
Summary
win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP3 does not properly validate the arguments to functions, which allows local users to read arbitrary data from kernel memory via a crafted application that triggers a NULL pointer dereference, aka "Win32k Incorrect Parameter Validation Allows Information Disclosure Vulnerability."
Exploit prediction
1.88% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 2.1 | AV:L/AC:L/Au:N/C:P/I:N/A:N |
References
-
docs.microsoft.com
/en-us/security-updates/securitybulletins/2011/ms11-054
vendor-advisory
-
securityfocus.com
/bid/48607
vdb-entry
- support.avaya.com /css/P8/documents/100144947
-
osvdb.org
/73791
vdb-entry
-
us-cert.gov
/cas/techalerts/TA11-193A.html
third-party-advisory, us-government-resource
-
secunia.com
/advisories/45186
third-party-advisory
-
oval.cisecurity.org
/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12778
vdb-entry, signature
-
securitytracker.com
/id?1025761
vdb-entry
Sources
- CVE List CVE-2011-1886
- NVD CVE-2011-1886
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.