CVE-2011-1985 EXPLOIT
7.1
HIGH · CVSS 3.1 · EPSS 2.3% (pctl 83)
Patch early
A public exploit exists.
Description
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 does not properly validate user-mode input, which allows local users to gain privileges or cause a denial of service (NULL pointer dereference and system crash) via a crafted application, aka "Win32k Null Pointer De-reference Vulnerability."
Scoring
| CVSS | 7.1 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
| EPSS | 2.27% — more likely to be exploited than 83% of all CVEs |
| Weakness | CWE-476 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2011-10-12 |
| Last modified | 2026-06-16 |
Affected (6)
| Vendor | Product |
|---|---|
| microsoft | windows 2003 server |
| microsoft | windows 7 |
| microsoft | windows server 2003 |
| microsoft | windows server 2008 |
| microsoft | windows vista |
| microsoft | windows xp |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Microsoft Win32k - Null Pointer De-reference (PoC) (MS11-077) | 2011-10-23 |
References
- http://www.securitytracker.com/id?1026165
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-077
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12935
- http://www.securitytracker.com/id?1026165
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-077
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12935
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