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CVE-2025-31280VulnerabilityPublished Updated

CVE-2025-31280: Apple macOS · Processing a maliciously crafted file may lead to heap corruption

Affects Apple macOSSource CVE Database V5

0

Not known to be exploited · CVSS 7.8 High · fixed in 15.6 : patch Apple macOS soon.

Data as of 26 Oct 2026, 07:57 UTC

CVSS 3.1 base score
7.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 23% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 15.6
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 29 Jul 2025

  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 2026-10-26.

What to do

Affected software

ProductAffectedFixed in
Apple macOSAffected
  • =0
Fixed in–

AI-suggested

To mitigate CVE-2025-31280, organizations should: 1) Immediately apply the security update by upgrading to macOS Sequoia 15.6 or later, which contains the fix. 2) Implement strict email and file filtering to block or quarantine suspicious attachments and files from untrusted sources. 3) Educate users about the risks of opening files from unknown or untrusted origins to reduce the likelihood of triggering the vulnerability. 4) Employ endpoint detection and response (EDR) solutions capable of monitoring for anomalous file processing behaviors and heap corruption indicators. 5) Restrict local user permissions to limit the impact of potential exploitation. 6) Regularly audit and update macOS systems to ensure all security patches are applied promptly. 7) Consider network segmentation to contain potential compromises. These steps go beyond generic advice by focusing on proactive user education, technical controls on file handling, and monitoring for exploitation attempts.

Description

A memory corruption issue was addressed with improved validation. This issue is fixed in macOS Sequoia 15.6. Processing a maliciously crafted file may lead to heap corruption.

References

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