CVE-2025-31273

The issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6, visionOS 2.6, watchOS 11.6. Processing maliciously crafted web content may lead to memory corruption.

Published: 2025-07-30 Last update: 2026-04-02 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-31273 is rated Moderate Risk (60.2/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.62%). Review affected assets and schedule remediation.

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-2025-31273

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 2026-05-25 0.16% 0.62% +0.46%
2 2026-04-24 0.06% 0.16% +0.09%
3 2026-01-06 — 0.06% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-31273

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H 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:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2025-31273

OS Trackers for CVE-2025-31273

vendor priority summary link
debian not yet assigned CVE-2025-31273 not yet assigned 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-2025-31273
gentoo high CVE-2025-31273: 1 GLSA(s) (202511-02), 1 atom(s) (net-libs/webkit-gtk); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2025-31273
redhat high — https://access.redhat.com/security/cve/CVE-2025-31273
suse high CVE-2025-31273 severity important: SUSE including 96 source package names (WebKitGTK-4.0-lang-2.48.5-150400.4.122.1, WebKitGTK-4.0-lang-2.48.5-150600.12.43.1, …), 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-2025-31273/
ubuntu medium CVE-2025-31273 medium priority: Ubuntu including 5 source packages (qtwebkit-opensource-src, qtwebkit-source, webkit2gtk, webkitgtk, wpewebkit), 31 status rows across 7 suites (bionic, focal, jammy, noble, plucky, upstream, xenial): ignored 14, DNE 9, needs-triage 4, released 4. https://ubuntu.com/security/CVE-2025-31273

Affected software / configurations for CVE-2025-31273

Vendor Product Version Raw CPE
apple safari < 18.6 cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
apple ipados < 18.6 cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
apple iphone_os < 18.6 cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple macos < 15.6 cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
apple tvos < 18.6 cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
apple visionos < 2.6 cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*
apple watchos < 11.6 cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*

References for CVE-2025-31273

cvelogic Threat Intelligence