CVE-2025-43240mediumCWE-703

CVE-2025-43240: medium-severity vulnerability in Apple Safari

Published 29 Jul 2025 · Updated 02 Apr 2026

Follow this CVE + Monitor macOS + Monitor Safari

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.2epss 1.0%

A logic issue was addressed with improved checks. This issue is fixed in Safari 18.6, macOS Sequoia 15.6. A download's origin may be incorrectly associated.

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

Affected products

Apple · macOS Apple · Safari

Related CVEs — Apple Safari

In the same product, most dangerous first.

CVE-2021-30860HIGHCVE-2021-30860EPSS 76.0%KEV CVE-2021-30657MEDIUMCVE-2021-30657EPSS 68.5%KEV CVE-2025-43300CRITICALCVE-2025-43300EPSS 65.2%KEV CVE-2023-41064HIGHCVE-2023-41064EPSS 53.4%KEV CVE-2023-32434HIGHCVE-2023-32434EPSS 51.5%KEV CVE-2021-30807HIGHCVE-2021-30807EPSS 28.8%KEV

References

http://seclists.org/fulldisclosure/2025/Aug/0 http://seclists.org/fulldisclosure/2025/Jul/32 https://lists.debian.org/debian-lts-announce/2025/08/msg00015.html https://support.apple.com/en-us/124149 https://support.apple.com/en-us/124152 http://www.openwall.com/lists/oss-security/2025/08/02/1