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VulnerabilityPublished Updated

CVE-2025-30464: Apple macOS · Out-of-bounds Write

Affects Apple macOSSource CVE Database V5

0

Not known to be exploited · CVSS 7.8 High · fixed in 15.4 : patch Apple macOS soon.

Data as of 26 Oct 2026, 10:12 UTC

CVSS 3.1 base score
7.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 21% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 15.4
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 31 Mar 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 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Apple macOSAffected
  • =0
Fixed in–

AI-suggested

Organizations should immediately apply the security updates provided in macOS Sequoia 15.4, Sonoma 14.7.5, and Ventura 13.7.5 to remediate this vulnerability. Beyond patching, organizations should enforce strict application whitelisting policies to prevent installation or execution of untrusted or unsigned applications. Employ endpoint protection solutions capable of detecting anomalous behavior indicative of exploitation attempts. Educate users about the risks of running untrusted software and the importance of avoiding suspicious links or downloads that could trigger exploitation. Implement least privilege principles to limit user capabilities and reduce the attack surface. Regularly audit and monitor macOS systems for unusual kernel activity or crashes that could indicate attempted exploitation. For high-security environments, consider network segmentation to isolate macOS devices and reduce exposure to local threat actors.

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.4, macOS Sonoma 14.7.5, macOS Ventura 13.7.5. An app may be able to cause unexpected system termination or corrupt kernel memory.

References

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