CVE-2022-4262

Exp

Type confusion in V8 in Google Chrome prior to 108.0.5359.94 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

Published: 2022-12-02 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-4262 is rated Critical Active Threat (99/100): CVSS High severity, with high exploitation likelihood (EPSS 16.11%, 97th percentile). CISA KEV confirms active exploitation (added 2022-12-05) affecting Google / Chromium V8. a weakness (CWE-843) Unauthenticated remote administrative access may be possible. EPSS rose +7.55% over the last day, indicating growing attacker interest. 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-2022-4262

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

Exploit added: 2022-12-05

Action due: 2022-12-26

Required action: Apply updates per vendor instructions.

Exploit prediction scoring system (EPSS) score for CVE-2022-4262

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 8.56% 16.11% +7.55%
2 2026-05-08 6.35% 8.56% +2.20%
3 2026-04-18 — 6.35% —

Full EPSS history (32 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-4262

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-2022-4262

OS Trackers for CVE-2022-4262

vendor priority summary link
alpine — CVE-2022-4262: 1 source package rows (qt5-qtwebengine); 7 state rows across 7 repos (3.17-community, 3.18-community, 3.19-community, 3.20-community, 3.21-community, 3.22-community, edge-community); fixed 7, open 0. https://security.alpinelinux.org/vuln/CVE-2022-4262
debian not yet assigned CVE-2022-4262 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-2022-4262
ubuntu medium CVE-2022-4262 medium priority: Ubuntu including 1 source packages (chromium-browser), 7 status rows across 7 suites (bionic, focal, jammy, kinetic, trusty, upstream, xenial): ignored 2, not-affected 2, released 2, DNE 1. https://ubuntu.com/security/CVE-2022-4262

Affected software / configurations for CVE-2022-4262

Vendor Product Version Raw CPE
google chrome < 108.0.5359.94 cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

References for CVE-2022-4262

cvelogic Threat Intelligence