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CVE-2005-0944Jet Vulnerability

Unknown vulnerability in Microsoft Jet DB engine (msjet40.dll) 4.00.8618.0, related to insufficient data validation, allows remote attackers to execute arbitrary code via a crafted mdb file.

Published May 2, 2005 · Updated Apr 15, 2026

Key Facts

Patch immediately
  • CVE-2005-0944 is a high-severity vulnerability (CVSS 7.5 v2) affecting Jet (Microsoft).
  • It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
  • EPSS estimates a 34% probability of exploitation in the next 30 days.
  • Fixed versions are available, including Jet 4.0.8618.0.
  • Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.

Scores

CVSS v2

7.5

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

EPSS (30-day exploit likelihood)

34%

Higher than 98.3% of all scored CVEs

Exploit maturity

Proof of concept

ATLAS score

44/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Not listed

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Proof of concept

Public exploit code

3

Proof-of-concept links

In-the-wild evidence

0

Reports of active use

Advisories And Exploit References

Description

Unknown vulnerability in Microsoft Jet DB engine (msjet40.dll) 4.00.8618.0, related to insufficient data validation, allows remote attackers to execute arbitrary code via a crafted mdb file.

Affected Products

1 affected entries in total
ProductAffected versionsFixed in
JetMicrosoftSee advisory4.0.8618.0

Patched Releases

Jet

4.0.8618.0

Timeline

  1. Publicly disclosed

    May 2, 2005

  2. Last updated

    Apr 15, 2026

References

4 more references in the full CVE brief

FAQ

Common Questions.

Is CVE-2005-0944 On Your Attack Surface?

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Figures as of Oct 19, 2026. Compiled by Brandefense technologies from public vulnerability catalogs; scoring as described in How it works.

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