CVE-2025-46299

A memory initialization issue was addressed with improved memory handling. This issue is fixed in Safari 26.2, iOS 26.2 and iPadOS 26.2, macOS Tahoe 26.2, tvOS 26.2, visionOS 26.2, watchOS 26.2. Processing maliciously crafted web content may disclose internal states of the app.

Published: 2026-01-09 Last update: 2026-04-02 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-46299 is rated Low Risk (18.9/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.02%). Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.

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-2025-46299

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 2026-02-18 0.06% 0.02% -0.04%
2 2026-01-15 0.05% 0.06% +0.01%
3 2026-01-10 — 0.05% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-46299

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:L/I:N/A:N 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:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 1.4 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2025-46299

OS Trackers for CVE-2025-46299

vendor priority summary link
debian end-of-life CVE-2025-46299 end-of-life priority: Debian including 2 source packages (webkit2gtk, wpewebkit), 10 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): open 5, resolved 5. https://security-tracker.debian.org/tracker/CVE-2025-46299
redhat medium — https://access.redhat.com/security/cve/CVE-2025-46299
suse medium — https://www.suse.com/security/cve/CVE-2025-46299/
ubuntu medium CVE-2025-46299 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, questing, resolute, upstream, xenial): ignored 14, DNE 13, needs-triage 4, needed 3, not-affected 1, released 1. https://ubuntu.com/security/CVE-2025-46299

Affected software / configurations for CVE-2025-46299

Vendor Product Version Raw CPE
apple safari < 26.2 cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
apple ipados < 26.2 cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
apple iphone_os < 26.2 cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple macos < 26.2 cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
apple tvos < 26.2 cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
apple visionos < 26.2 cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*
apple watchos < 26.2 cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*

References for CVE-2025-46299

URL Tags
https://support.apple.com/en-us/125884 Release Notes Vendor Advisory
https://support.apple.com/en-us/125886 Release Notes Vendor Advisory
https://support.apple.com/en-us/125889 Release Notes Vendor Advisory
https://support.apple.com/en-us/125890 Release Notes Vendor Advisory
https://support.apple.com/en-us/125891 Release Notes Vendor Advisory
https://support.apple.com/en-us/125892 Release Notes Vendor Advisory
cvelogic Threat Intelligence