A use-after-free issue was addressed with improved memory management. This issue is fixed in iOS 16.4 and iPadOS 16.4, macOS Ventura 13.3. Processing web content may lead to arbitrary code execution.
Conclusion & alert: CVE-2023-28198 is rated Moderate Risk (54.3/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.82%). 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 | 2026-06-15 | 0.06% | 0.82% | +0.77% |
| 2 | 2025-11-21 | 1.37% | 0.06% | -1.31% |
| 3 | 2025-11-18 | — | 1.37% | — |
Full EPSS history (11 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 8.8 | 3.1 | HIGH |
|
2.8 | 5.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2023-28198 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-2023-28198 |
gentoo
|
high | CVE-2023-28198: 1 GLSA(s) (202401-04), 1 atom(s) (net-libs/webkit-gtk); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2023-28198 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2023-28198 |
suse
|
high | CVE-2023-28198 severity important: SUSE including 122 source package names (WebKitGTK-4.0-lang-2.40.5-150400.4.51.1, WebKitGTK-4.0-lang-2.42.5-150600.10.35, …), 268 product×package rows across 31 product lines (SUSE Liberty Linux 8, SUSE Liberty Linux 9, … (31 product lines)): Fixed 201, Known Not Affected 67. | https://www.suse.com/security/cve/CVE-2023-28198/ |
ubuntu
|
medium | CVE-2023-28198 medium priority: Ubuntu including 5 source packages (qtwebkit-opensource-src, qtwebkit-source, webkit2gtk, webkitgtk, wpewebkit), 45 status rows across 9 suites (bionic, focal, jammy, lunar, mantic, noble, trusty, upstream, xenial): ignored 21, DNE 16, released 4, needs-triage 2, not-affected 2. | https://ubuntu.com/security/CVE-2023-28198 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| apple | ipados | < 16.4 | cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* |
| apple | iphone_os | < 16.4 | cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* |
| apple | macos | >= 13.0, < 13.3 | cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* |
| webkitgtk | webkitgtk | < 2.40.1 | cpe:2.3:a:webkitgtk:webkitgtk:*:*:*:*:*:*:*:* |
| wpewebkit | wpe_webkit | < 2.40.1 | cpe:2.3:a:wpewebkit:wpe_webkit:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://www.openwall.com/lists/oss-security/2023/09/11/1 | Mailing List Third Party Advisory |
| https://security.gentoo.org/glsa/202401-04 | |
| https://support.apple.com/en-us/HT213670 | Release Notes Vendor Advisory |
| https://support.apple.com/en-us/HT213676 | Release Notes Vendor Advisory |