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CVE-2005-2340Quicktime Memory Corruption

Heap-based buffer overflow in Apple Quicktime before 7.0.4 allows remote attackers to execute arbitrary code via a crafted (1) QuickTime Image File (QTIF), (2) PICT, or (3) JPEG format image with a long data field.

Published Dec 31, 2005 · Updated Apr 15, 2026

Key Facts

Patch immediately
  • CVE-2005-2340 is a high-severity vulnerability (CVSS 7.5 v2) affecting Quicktime (Apple).
  • It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
  • EPSS estimates a 26% probability of exploitation in the next 30 days.
  • Fixed versions are available, including Quicktime 7.0.3.
  • 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)

26%

Higher than 97.9% of all scored CVEs

Exploit maturity

Proof of concept

ATLAS score

39/100

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

1

Proof-of-concept links

In-the-wild evidence

1

Reports of active use

Description

Heap-based buffer overflow in Apple Quicktime before 7.0.4 allows remote attackers to execute arbitrary code via a crafted (1) QuickTime Image File (QTIF), (2) PICT, or (3) JPEG format image with a long data field.

Affected Products

4 affected entries in total
ProductAffected versionsFixed in
QuicktimeApple7.0, 7.0.1, 7.0.27.0.3

Patched Releases

Quicktime

7.0.3

Timeline

  1. Publicly disclosed

    Dec 31, 2005

  2. Last updated

    Apr 15, 2026

Weakness Type

  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

15 more references in the full CVE brief

FAQ

Common Questions.

Is CVE-2005-2340 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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