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CVE-2024-40846VulnerabilityPublished Updated

CVE-2024-40846: Apple macOS · Processing a maliciously crafted video file may lead to unexpected app termination

Affects Apple macOSSource CVE Database V5

0

Not known to be exploited · CVSS 7.8 High.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score
7.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 40% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 16 Sep 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.

What to do

Affected software

ProductAffectedFixed in
Apple macOSAffected
  • =0
Fixed in–

AI-suggested

1. Immediately update all macOS systems to the latest patched versions, specifically macOS Sequoia 15 or macOS Sonoma 14.7 or later, to ensure the vulnerability is remediated. 2. Implement strict file handling policies that restrict or scan video files from untrusted sources before opening or processing them on macOS devices. 3. Deploy endpoint protection solutions capable of detecting and blocking malicious media files or anomalous application crashes related to media processing. 4. Educate users about the risks of opening unsolicited or suspicious video files, emphasizing cautious behavior and verification of file sources. 5. Use application sandboxing and least privilege principles to limit the potential impact of application crashes or exploitation attempts. 6. Monitor system and application logs for unusual termination events or crashes related to media playback applications to detect potential exploitation attempts early. 7. Consider network-level controls to filter or quarantine suspicious media files before they reach end users. 8. Maintain a robust backup and recovery strategy to mitigate operational disruptions caused by denial of service or other impacts stemming from exploitation.

Description

The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15, macOS Sonoma 14.7. Processing a maliciously crafted video file may lead to unexpected app termination.

References

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