CVE-2025-43368

A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26, iOS 26 and iPadOS 26, macOS Tahoe 26. Processing maliciously crafted web content may lead to an unexpected Safari crash.

Published: 2025-09-15 Last update: 2026-05-12 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-43368 is rated Low Risk (23.2/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.05%). 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-2025-43368

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 2026-04-11 0.04% 0.05% +0.02%
2 2026-02-11 0.06% 0.04% -0.02%
3 2025-11-22 — 0.06% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-43368

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-2025-43368

GitHub Security Advisory for CVE-2025-43368

GHSA-3cm9-h59j-r72g · Severity: medium — A use-after-free issue was addressed with improved memory management. This issue is fixed in...

OS Trackers for CVE-2025-43368

vendor priority summary link
debian end-of-life CVE-2025-43368 end-of-life priority: Debian including 2 source packages (webkit2gtk, wpewebkit), 10 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 7, open 3. https://security-tracker.debian.org/tracker/CVE-2025-43368
redhat high — https://access.redhat.com/security/cve/CVE-2025-43368
suse medium CVE-2025-43368 severity moderate: SUSE including 112 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, …), 451 product×package rows across 70 product lines (Container suse/sl-micro/6.0/baremetal-os-container, Container suse/sl-micro/6.0/base-os-container, … (70 product lines)): Fixed 433, First Fixed 18. https://www.suse.com/security/cve/CVE-2025-43368/
ubuntu medium CVE-2025-43368 medium priority: Ubuntu including 4 source packages (qtwebkit-opensource-src, qtwebkit-source, webkit2gtk, webkitgtk), 30 status rows across 8 suites (bionic, focal, jammy, noble, plucky, questing, upstream, xenial): ignored 12, DNE 10, released 5, needs-triage 3. https://ubuntu.com/security/CVE-2025-43368

Affected software / configurations for CVE-2025-43368

Vendor Product Version Raw CPE
apple safari < 26.0 cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
apple ipados < 26.0 cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
apple iphone_os < 26.0 cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple macos < 26.0 cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*

References for CVE-2025-43368

cvelogic Threat Intelligence