This report was translated by AI; nobody has reviewed the translation yet. Original language: Czech.

[TLP:CLEAR] Apple fixes an actively exploited vulnerability

Apple fixes a high-severity and actively exploited [1] vulnerability in its products. Products and their fixed versions: iOS - 18.6.2 [2] iPadOS - 18.6.2 [2], 17.7.10 [3] macOS Ventura - 13.7.8 [4] macOS Sonoma - 14.7.8 [5] macOS Sequoia - 15.6.1 [6]

Apple iOS, iPadOS, macOS Ventura, macOS Sonoma, macOS Sequoia - memory corruption (CVE-2025-43300)
CVSS 8.8 (High)

An unauthenticated remote attacker, due to an out-of-bounds write vulnerability in the Image I/O framework when processing a malicious image file, is able to cause memory corruption [7].

The vulnerability is present in products:

  • iOS; <18.6.2
  • iPadOS; <18.6.2; <17.7.10
  • macOS Ventura; <13.7.8
  • macOS Sonoma; <14.7.8
  • macOS Sequoia; <15.6.1

CVSS: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

More information:

The vulnerability was publicly disclosed 20. 8. 2025.


By CESNET, z.s.p.o. Michaela Jarošová on 22. 8. 2025.

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