A buffer overflow issue was addressed with improved memory handling. 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, watchOS 11.4. Processing maliciously crafted web content may lead to an unexpected process crash.
Conclusion & alert: CVE-2025-24209 is rated Moderate Risk (53.2/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.67%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
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 | 2026-05-27 | 0.56% | 0.67% | +0.11% |
| 2 | 2026-05-09 | 2.56% | 0.56% | -2.00% |
| 3 | 2026-04-03 | — | 2.56% | — |
Full EPSS history (13 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.0 | 3.1 | HIGH |
|
2.2 | 4.7 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2025-24209 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-2025-24209 |
gentoo
|
high | CVE-2025-24209: 1 GLSA(s) (202511-02), 1 atom(s) (net-libs/webkit-gtk); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2025-24209 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2025-24209 |
suse
|
high | CVE-2025-24209 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-2025-24209/ |
ubuntu
|
medium | CVE-2025-24209 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-2025-24209 |
| 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:*:*:*:*:*:*:*:* |