CVE-2023-40397

The issue was addressed with improved checks. This issue is fixed in macOS Ventura 13.5. A remote attacker may be able to cause arbitrary javascript code execution.

Published: 2023-09-06 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-40397 is rated High Risk (67.8/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 1.45%). High exploitation likelihood—assess exposure and prioritize 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-2023-40397

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 2026-06-01 1.23% 1.45% +0.22%
2 2025-11-21 4.65% 1.23% -3.42%
3 2025-11-18 — 4.65% —

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-40397

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
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.
 3.9 5.9 [email protected]

Weakness enumeration for CVE-2023-40397

OS Trackers for CVE-2023-40397

vendor priority summary link
debian not yet assigned CVE-2023-40397 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-2023-40397
gentoo high CVE-2023-40397: 1 GLSA(s) (202401-04), 1 atom(s) (net-libs/webkit-gtk); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2023-40397
redhat medium — https://access.redhat.com/security/cve/CVE-2023-40397
suse high CVE-2023-40397 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-2023-40397/
ubuntu medium CVE-2023-40397 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 6, needs-triage 2. https://ubuntu.com/security/CVE-2023-40397

Affected software / configurations for CVE-2023-40397

Vendor Product Version Raw CPE
apple macos < 13.5 cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
webkitgtk webkitgtk < 2.40.5 cpe:2.3:a:webkitgtk:webkitgtk:*:*:*:*:*:*:*:*
wpewebkit wpe_webkit < 2.40.5 cpe:2.3:a:wpewebkit:wpe_webkit:*:*:*:*:*:*:*:*

References for CVE-2023-40397

cvelogic Threat Intelligence