CVE-2023-4427

Out of bounds memory access in V8 in Google Chrome prior to 116.0.5845.110 allowed a remote attacker to perform an out of bounds memory read via a crafted HTML page. (Chromium security severity: High)

Published: 2023-08-23 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-4427 is rated Moderate Risk (61.8/100): CVSS High severity, with high exploitation likelihood (EPSS 33.98%, 98th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. 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-2023-4427

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 83.60% 33.98% -49.62%
2 2026-06-04 79.29% 83.60% +4.31%
3 2026-05-17 — 79.29% —

Full EPSS history (35 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-4427

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.1 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/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:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.2 [email protected]

Weakness enumeration for CVE-2023-4427

OS Trackers for CVE-2023-4427

vendor priority summary link
debian not yet assigned CVE-2023-4427 not yet assigned priority: Debian including 1 source packages (chromium), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2023-4427
gentoo high CVE-2023-4427: 1 GLSA(s) (202401-34), 3 atom(s) (www-client/chromium, www-client/google-chrome, www-client/microsoft-edge); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2023-4427
ubuntu medium CVE-2023-4427 medium priority: Ubuntu including 1 source packages (chromium-browser), 7 status rows across 7 suites (bionic, focal, jammy, lunar, trusty, upstream, xenial): ignored 3, not-affected 2, DNE 1, released 1. https://ubuntu.com/security/CVE-2023-4427

Affected software / configurations for CVE-2023-4427

Vendor Product Version Raw CPE
google chrome < 116.0.5845.110 cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
fedoraproject fedora 37 cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
fedoraproject fedora 38 cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
fedoraproject fedora 39 cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*

References for CVE-2023-4427

URL Tags
http://packetstormsecurity.com/files/174951/Chrome-ReduceJSLoadPropertyWithEnumeratedKey-Out-Of-Bounds-Access.html Third Party Advisory VDB Entry
https://chromereleases.googleblog.com/2023/08/chrome-desktop-stable-update.html Release Notes Vendor Advisory
https://crbug.com/1470668 Permissions Required
https://lists.fedoraproject.org/archives/list/[email protected]/message/27NR3KG553CG6LGPMP6SHWEVHTYPL6RC/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/[email protected]/message/6T655QF7CQ3DYAMPFV7IECQYGDEUIVVT/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/[email protected]/message/KUQ7CTX3W372X3UY56VVNAHCH6H2F4X3/ Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202401-34
https://www.debian.org/security/2023/dsa-5483 Third Party Advisory
cvelogic Threat Intelligence