CVE-2011-1886

Severity: low (CVSS 2.1 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-07-13 · updated 2026-06-16

Description

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."

Affected products

Microsoft Windows XP Service Pack 3: all versions

References

http://osvdb.org/73791
http://secunia.com/advisories/45186
http://support.avaya.com/css/P8/documents/100144947
http://www.securityfocus.com/bid/48607
http://www.securitytracker.com/id?1025761
http://www.us-cert.gov/cas/techalerts/TA11-193A.html
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-054
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12778
http://osvdb.org/73791
http://secunia.com/advisories/45186
http://support.avaya.com/css/P8/documents/100144947
http://www.securityfocus.com/bid/48607

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