CVE-2023-4762

Exp

Type Confusion in V8 in Google Chrome prior to 116.0.5845.179 allowed a remote attacker to execute arbitrary code via a crafted HTML page. (Chromium security severity: High)

Published: 2023-09-05 Last update: 2025-10-24 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-4762 is rated Critical Active Threat (89.5/100): CVSS High severity, with high exploitation likelihood (EPSS 55.80%, 98th percentile). CISA KEV confirms active exploitation (added 2024-02-06) affecting Google / Chromium V8. a weakness (CWE-843) Unauthenticated remote administrative access may be possible. The CISA remediation deadline has passed—treat as an emergency patch priority.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

CISA KEV Record for CVE-2023-4762

Name: Google Chromium V8 Type Confusion Vulnerability · CISA KEV detail

Exploit added: 2024-02-06

Action due: 2024-02-27

Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Exploit prediction scoring system (EPSS) score for CVE-2023-4762

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 2026-05-02 64.63% 55.80% -8.83%
2 2026-04-16 63.59% 64.63% +1.05%
3 2026-03-21 — 63.59% —

Full EPSS history (70 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-4762

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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: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: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.
 2.8 5.9 [email protected]
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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: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: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.
 2.8 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2023-4762

OS Trackers for CVE-2023-4762

vendor priority summary link
alpine — CVE-2023-4762: 1 source package rows (qt5-qtwebengine); 6 state rows across 6 repos (3.18-community, 3.19-community, 3.20-community, 3.21-community, 3.22-community, edge-community); fixed 6, open 0. https://security.alpinelinux.org/vuln/CVE-2023-4762
debian not yet assigned CVE-2023-4762 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-2023-4762
gentoo high CVE-2023-4762: 3 GLSA(s) (202311-11, 202312-07, 202401-34), 4 atom(s) (dev-qt/qtwebengine, www-client/chromium, www-client/google-chrome, www-client/microsoft-edge); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2023-4762
ubuntu medium CVE-2023-4762 medium priority: Ubuntu including 1 source packages (chromium-browser), 8 status rows across 8 suites (bionic, focal, jammy, lunar, mantic, trusty, upstream, xenial): ignored 3, not-affected 3, DNE 1, released 1. https://ubuntu.com/security/CVE-2023-4762

Affected software / configurations for CVE-2023-4762

Vendor Product Version Raw CPE
google chrome < 116.0.5845.179 cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
debian debian_linux 11.0 cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
debian debian_linux 12.0 cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*
microsoft edge_chromium < 116.0.1938.76 cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:*:*:*:*

References for CVE-2023-4762

URL Tags
https://chromereleases.googleblog.com/2023/09/stable-channel-update-for-desktop.html Vendor Advisory
https://crbug.com/1473247 Permissions Required
https://lists.fedoraproject.org/archives/list/[email protected]/message/27NR3KG553CG6LGPMP6SHWEVHTYPL6RC/ Mailing List
https://lists.fedoraproject.org/archives/list/[email protected]/message/6T655QF7CQ3DYAMPFV7IECQYGDEUIVVT/ Mailing List
https://lists.fedoraproject.org/archives/list/[email protected]/message/KUQ7CTX3W372X3UY56VVNAHCH6H2F4X3/ Mailing List
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-4762 Patch Third Party Advisory
https://security.gentoo.org/glsa/202311-11 Third Party Advisory
https://security.gentoo.org/glsa/202312-07 Third Party Advisory
https://security.gentoo.org/glsa/202401-34 Third Party Advisory
https://www.debian.org/security/2023/dsa-5491 Mailing List Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-4762 US Government Resource
cvelogic Threat Intelligence