CVE-2025-31257

This issue was addressed with improved memory handling. This issue is fixed in Safari 18.5, iOS 18.5 and iPadOS 18.5, macOS Sequoia 15.5, tvOS 18.5, visionOS 2.5, watchOS 11.5. Processing maliciously crafted web content may lead to an unexpected Safari crash.

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

CVE-2025-31257 is rated Moderate Risk (45.2/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.80%). 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-2025-31257

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 2026-03-08 0.18% 0.80% +0.62%
2 2026-01-26 0.08% 0.18% +0.10%
3 2025-06-15 — 0.08% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-31257

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.7 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/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:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
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-2025-31257

GitHub Security Advisory for CVE-2025-31257

GHSA-289j-qjv7-62fr · Severity: medium — This issue was addressed with improved memory handling. This issue is fixed in watchOS 11.5, tvOS...

OS Trackers for CVE-2025-31257

vendor priority summary link
debian not yet assigned CVE-2025-31257 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-2025-31257
redhat high — https://access.redhat.com/security/cve/CVE-2025-31257
suse medium CVE-2025-31257 severity moderate: SUSE including 96 source package names (WebKitGTK-4.0-lang-2.48.2-150400.4.119.1, WebKitGTK-4.0-lang-2.48.2-150600.12.40.2, …), 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-2025-31257/
ubuntu medium CVE-2025-31257 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-2025-31257

Affected software / configurations for CVE-2025-31257

Vendor Product Version Raw CPE
apple safari < 18.5 cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
apple ipados < 18.5 cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
apple iphone_os < 18.5 cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple macos < 15.5 cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
apple tvos < 18.5 cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
apple visionos < 2.5 cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*
apple watchos < 11.5 cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*

References for CVE-2025-31257

cvelogic Threat Intelligence