CVE-2011-1240: n/a vulnerability

CVE-2011-1240: Use-after-free vulnerability in win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3,...

Use-after-free vulnerability in win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows local users to gain privileges via a crafted application that leverages incorrect driver object management, a different vulnerability than other "Vulnerability Type 1" CVEs listed in MS11-034, aka "Win32k Use After Free Vulnerability."

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 22:21 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2011-1240 is a Windows kernel privilege escalation flaw. An attacker who can run a crafted local application on an affected system could gain higher privileges. This is not described as remotely exploitable in the provided sources, but it matters where legacy Windows systems still exist. Exposure is likely limited to systems running the listed older Windows versions: XP SP2/SP3, Server 2003 SP2, Vista SP1/SP2, Server 2008 variants, and Windows 7 Gold/SP1, especially if MS11-034 guidance was not applied. Treat as high priority only where affected legacy Windows systems remain. The business risk is local takeover after initial access, which can turn a foothold into broader system control. Mitigation focus: Review and apply Microsoft MS11-034 guidance for affected Windows versions.; Inventory remaining systems matching the listed Windows versions and service packs.; Check third-party vendor guidance for appliances or bundled Windows deployments..

Prepared: Jun 24, 2026, 13:28 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Apr 13, 2011, 20:07 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

4Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
MS11-034CVE reference · vendor-advisory, x_refsource_MS
oval:org.mitre.oval:def:12547CVE reference · vdb-entry, signature
mswin-win32k-var28-priv-escalation(66422)CVE reference · vdb-entry, x_refsource_XF

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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