CVE-2025-31266

MEDIUM

4.3

CVSS Score

Published: November 21, 2025 at 09:22 PM UTC

Updated: October 18, 2026 at 08:10 PM UTC

2 products affected across 1 vendormacOSSafari

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Severity

MEDIUM4.3

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

A spoofing issue was addressed with improved truncation when displaying the fully qualified domain name This issue is fixed in Safari 18.5, macOS Sequoia 15.5. A website may be able to spoof the domain name in the title of a pop-up window.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

macOS · Apple

95%

v < 15.5

Affected range stops below 15.5, so it looks safe — our inference, not a vendor statement

Safari · Apple

95%

v < 18.5

Affected range stops below 18.5, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Release NotesVendor Advisory

Source: cverecord

https://support.apple.com/en-us/122716

Release NotesVendor Advisory

Source: cverecord

https://support.apple.com/en-us/122719

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMCISA-ADP

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: REQUIRED
Scope: UNCHANGED
Confidentiality: NONE
Integrity: NONE
Availability: LOW

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-451

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