The issue was addressed with improved checks. This issue is fixed in Safari 26.1, iOS 26.1 and iPadOS 26.1, macOS Tahoe 26.1, tvOS 26.1, visionOS 26.1, watchOS 26.1. A malicious website may exfiltrate data cross-origin.
Conclusion & alert: CVE-2025-43480 is rated Low Risk (35.3/100): CVSS High severity, with low exploitation likelihood (EPSS 0.03%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-04-01 | 0.07% | 0.03% | -0.04% |
| 2 | 2026-03-06 | 0.02% | 0.07% | +0.05% |
| 3 | 2025-11-04 | — | 0.02% | — |
Full EPSS history (3 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 8.1 | 3.1 | HIGH |
|
2.8 | 5.2 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2025-43480 not yet assigned priority: Debian including 2 source packages (webkit2gtk, wpewebkit), 10 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 8, open 2. | https://security-tracker.debian.org/tracker/CVE-2025-43480 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2025-43480 |
suse
|
medium | CVE-2025-43480 severity moderate: SUSE including 125 source package names (2.2.0-4.55:gpg2-2.4.4-slfo.1.1_2.1, 2.2.1-7.2:gpg2-2.4.4-slfo.1.1_2.1, …), 556 product×package rows across 78 product lines (Container suse/sl-micro/6.0/baremetal-os-container, Container suse/sl-micro/6.0/base-os-container, … (78 product lines)): Fixed 481, Known Not Affected 57, First Fixed 18. | https://www.suse.com/security/cve/CVE-2025-43480/ |
ubuntu
|
medium | CVE-2025-43480 medium priority: Ubuntu including 5 source packages (qtwebkit-opensource-src, qtwebkit-source, webkit2gtk, webkitgtk, wpewebkit), 36 status rows across 8 suites (bionic, focal, jammy, noble, plucky, questing, upstream, xenial): ignored 14, DNE 13, needs-triage 4, released 3, not-affected 2. | https://ubuntu.com/security/CVE-2025-43480 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| apple | safari | < 26.1 | cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:* |
| apple | ipados | < 26.1 | cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* |
| apple | iphone_os | < 26.1 | cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* |
| apple | tvos | < 26.1 | cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* |
| apple | visionos | < 26.1 | cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:* |
| apple | watchos | < 26.1 | cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://support.apple.com/en-us/125632 | Release Notes Vendor Advisory |
| https://support.apple.com/en-us/125634 | |
| https://support.apple.com/en-us/125637 | Release Notes Vendor Advisory |
| https://support.apple.com/en-us/125638 | Release Notes Vendor Advisory |
| https://support.apple.com/en-us/125639 | Release Notes Vendor Advisory |
| https://support.apple.com/en-us/125640 | Release Notes Vendor Advisory |