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Emerging threatsHigh

CVE-2010-3338Windows 7 Vulnerability

The Windows Task Scheduler in Microsoft Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7 does not properly determine the security context of scheduled tasks, which allows local users to gain privileges via a crafted application, aka "Task Scheduler…

Published Dec 16, 2010 · Updated Apr 28, 2026

Key Facts

Patch immediately
  • CVE-2010-3338 is a high-severity vulnerability (CVSS 7.2 v2) affecting Windows 7 (Microsoft), Windows Server 2008 (Microsoft), Windows Vista (Microsoft).
  • It is exploited in the wild, listed in Industry KEV feed since Dec 15, 2021. Public exploit code is available.
  • EPSS estimates a 23% probability of exploitation in the next 30 days.
  • No fixed version is listed yet; check the vendor advisory for mitigations.
  • Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Scores

CVSS v2

7.2

AV:L/AC:L/Au:N/C:C/I:C/A:C

EPSS (30-day exploit likelihood)

23%

Higher than 97.7% of all scored CVEs

Exploit maturity

Weaponized

ATLAS score

49/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Dec 15, 2021

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Weaponized

Public exploit code

3

Proof-of-concept links

In-the-wild evidence

2

Reports of active use

Description

The Windows Task Scheduler in Microsoft Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7 does not properly determine the security context of scheduled tasks, which allows local users to gain privileges via a crafted application, aka "Task Scheduler Vulnerability." NOTE: this might overlap CVE-2010-3888.

Known-Exploited Catalog Listings

CatalogAddedRemediation dueRansomware use
Industry KEV feedDec 15, 2021n/aNot reported

Affected Products

11 affected entries in total
ProductAffected versionsFixed in
Windows 7MicrosoftSee advisoryn/a
Windows Server 2008Microsoftr2n/a
Windows VistaMicrosoftSee advisoryn/a

Timeline

  1. Publicly disclosed

    Dec 16, 2010

  2. Added to Industry KEV feed

    Dec 15, 2021

  3. Last updated

    Apr 28, 2026

Weakness Type

  • CWE-20 Improper Input Validation

References

4 more references in the full CVE brief

FAQ

Common Questions.

Is CVE-2010-3338 On Your Attack Surface?

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Figures as of Oct 20, 2026. Compiled by Brandefense technologies from public vulnerability catalogs; scoring as described in How it works.

To report an error, contact Brandefense.