CVE-2025-30427

A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 18.4, iOS 18.4 and iPadOS 18.4, iPadOS 17.7.6, macOS Sequoia 15.4, tvOS 18.4, visionOS 2.4, watchOS 11.4. Processing maliciously crafted web content may lead to an unexpected Safari crash.

Published: 2025-03-31 Last update: 2026-04-02 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-30427 is rated Low Risk (29/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.16%). 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.

Exploit prediction scoring system (EPSS) score for CVE-2025-30427

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 2026-05-09 1.12% 0.16% -0.96%
2 2026-01-25 0.26% 1.12% +0.86%
3 2025-12-15 — 0.26% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-30427

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 2.8 1.4 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2025-30427

OS Trackers for CVE-2025-30427

vendor priority summary link
debian not yet assigned CVE-2025-30427 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-2025-30427
gentoo high CVE-2025-30427: 1 GLSA(s) (202511-02), 1 atom(s) (net-libs/webkit-gtk); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2025-30427
redhat high — https://access.redhat.com/security/cve/CVE-2025-30427
suse high CVE-2025-30427 severity important: SUSE including 96 source package names (WebKitGTK-4.0-lang-2.48.1-150400.4.115.2, WebKitGTK-4.0-lang-2.48.1-150600.12.36.5, …), 375 product×package rows across 30 product lines (SUSE Enterprise Storage 7.1, SUSE Liberty Linux 8, … (30 product lines)): Fixed 375. https://www.suse.com/security/cve/CVE-2025-30427/
ubuntu medium CVE-2025-30427 medium priority: Ubuntu including 5 source packages (qtwebkit-opensource-src, qtwebkit-source, webkit2gtk, webkitgtk, wpewebkit), 38 status rows across 8 suites (bionic, focal, jammy, noble, oracular, plucky, upstream, xenial): ignored 15, DNE 14, released 5, needs-triage 4. https://ubuntu.com/security/CVE-2025-30427

Affected software / configurations for CVE-2025-30427

Vendor Product Version Raw CPE
apple safari < 18.4 cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
apple ipados < 17.7.6 cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
apple ipados >= 18.0, < 18.4 cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
apple iphone_os < 18.4 cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple macos >= 15.0, < 15.4 cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
apple tvos < 18.4 cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
apple visionos < 2.4 cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*

References for CVE-2025-30427

cvelogic Threat Intelligence