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CVE-2025-43480VulnerabilityPublished Updated

CVE-2025-43480: Apple Safari · A malicious website may exfiltrate data cross-origin

Affects Apple SafariSource CVE Database V5

0

Not known to be exploited · CVSS 8.1 High : upgrade to 26.1 soon.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score
8.1High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 41% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 26.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 4 Nov 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 2026-10-25.

What to do

Upgrade Apple Safari to 26.1.

Affected software

ProductAffectedFixed in
Apple SafariAffected
  • =0
  • <26.1
Fixed in
  • 26.1

AI-suggested

Apple has released an official fix for this vulnerability in Safari 26.1 and corresponding OS updates (iOS 26.1, iPadOS 26.1, macOS Tahoe 26.1, tvOS 26.1, visionOS 26.1, watchOS 26.1). Users and administrators should update to these versions to remediate the issue. Patch status is confirmed by the vendor advisory.

Description

CVE-2025-43480 is a high-severity vulnerability in Apple Safari that allows a malicious website to exfiltrate data across origins. The issue involves insufficient cross-origin data access checks, which could lead to unauthorized data leakage. Apple addressed this vulnerability with improved checks and fixed it in Safari 26.1 and corresponding OS versions including iOS 26.1, iPadOS 26.1, macOS Tahoe 26.1, tvOS 26.1, visionOS 26.1, and watchOS 26.1.

References

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