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."
Published Jul 13, 2011
2.1
LOWCVSS 2.0
EPSS 1.88%
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
No data.
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.88% (0.01878) | 78.67th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.88% (0.01878) | 76.63th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.44% (0.00439) | 60.97th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.05% (0.00049) | 20.13th | v3 (v2023.03.01) |
| May 22, 2024 | 0.05% (0.00050) | 19.02th | v3 (v2023.03.01) |
| Mar 2, 2024 | 0.05% (0.00051) | 16.98th | v3 (v2023.03.01) |
| Jan 11, 2024 | 0.05% (0.00054) | 19.51th | v3 (v2023.03.01) |
| Apr 11, 2023 | 0.06% (0.00057) | 21.68th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.05% (0.00050) | 17.64th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.77% (0.01773) | 76.63th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.77% (0.01773) | 76.58th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.77% (0.01773) | 74.52th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.77% (0.01773) | 53.76th | v2 (v2022.01.01) |
No CWE recorded.
References (8)
- http://osvdb.org/73791 vdb-entryx_refsource_OSVDB
- http://secunia.com/advisories/45186 third-party-advisoryx_refsource_SECUNIA
- http://support.avaya.com/css/P8/documents/100144947 x_refsource_CONFIRM
- http://www.securityfocus.com/bid/48607 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id?1025761 vdb-entryx_refsource_SECTRACK
- http://www.us-cert.gov/cas/techalerts/TA11-193A.html third-party-advisoryx_refsource_CERTUS Government Resource
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-054 vendor-advisoryx_refsource_MS
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12778 vdb-entrysignaturex_refsource_OVAL
| Link | Providers | Tags |
|---|---|---|
| http://osvdb.org/73791 | vdb-entryx_refsource_OSVDB | |
| http://secunia.com/advisories/45186 | third-party-advisoryx_refsource_SECUNIA | |
| http://support.avaya.com/css/P8/documents/100144947 | x_refsource_CONFIRM | |
| http://www.securityfocus.com/bid/48607 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id?1025761 | vdb-entryx_refsource_SECTRACK | |
| http://www.us-cert.gov/cas/techalerts/TA11-193A.html | third-party-advisoryx_refsource_CERTUS Government Resource | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-054 | vendor-advisoryx_refsource_MS | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12778 | vdb-entrysignaturex_refsource_OVAL |
Change history (0)
No recorded changes yet.