CVE-2024-4947criticalunder attackCWE-843

CVE-2024-4947: critical vulnerability in Google Chrome

Published · Updated

85Vexday Risk Score

Prioritize patching. It under exploitation confirmed by CISA and has a public proof of concept.

ssvc Actcvss 9.6epss 15%
from disclosure to weapon432 days
Published on NVDMay 15
1st PoC+432d
CISA KEV+5d
exploitation probability
15%top 3% of all CVEs
observed exploitation
yesCISA + VulnCheck
4 public exploit(s)
What the vendors declare (VEX)

Official vendor statements in CSAF/VEX format: whether their product is affected, already fixed, or ruled out — and why. These are the vendor's assertions, not Vexday's judgment.

Red HatVEX document ↗
Affected
1 product (2 components)
Red Hat Enterprise Linux 6
workaround: Until updated packages are released for Fedora and EPEL, consider temporarily swapping to an alternative web browser such as Firefox or severely restricting activity to sites you know well and trust.
Action required by CISAfederal deadline: 2024-06-10

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

In short

A flaw in Chrome's V8 JavaScript engine allows attackers to trick the browser into confusing different data types, letting them run malicious code even within Chrome's security sandbox. This happens when someone visits a specially designed webpage.

Technical detail

Type confusion vulnerability in V8 (CWE-843) allows remote code execution within the Chrome sandbox when a user opens a crafted HTML page; no user interaction beyond opening the page is required. The vulnerability stems from improper type checking in the JavaScript engine, enabling an attacker to bypass memory safety protections and execute arbitrary code with sandboxed privileges.

Summary generated and translated by AI from the official description.

The full analysis of this CVE is available in Portuguese →

Type Confusion in V8 in Google Chrome prior to 125.0.6422.60 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Affected products
Google · Chrome
public PoCs found — 4
githubgithub.com/bjrjk/CVE-2024-4947★ 30vulncheckvulncheck.com/xdb/7f3fd589f19aunverifiedvulncheckvulncheck.com/xdb/9e6d295d45caunverifiedvulncheckvulncheck.com/xdb/bb159e19aecfunverified
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — Google Chrome

In the same product, most dangerous first.

CVE-2023-4863HIGHCVE-2023-4863EPSS 100.0%KEVCVE-2018-17463HIGHCVE-2018-17463EPSS 84.6%KEVCVE-2021-21224HIGHCVE-2021-21224EPSS 84.2%KEVCVE-2020-6418HIGHCVE-2020-6418EPSS 78.8%KEVCVE-2022-2294HIGHCVE-2022-2294EPSS 70.8%KEVCVE-2021-21220HIGHCVE-2021-21220EPSS 70.4%KEV
References
https://chromereleases.googleblog.com/2024/05/stable-channel-update-for-desktop_15.htmlhttps://issues.chromium.org/issues/340221135https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6G7EYH2JAK5OJPVNC6AXYQ5K7YGYNCDN/https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NTSN22LNYXMWHVTYNOYQVOY7VDZFHENQ/https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WSUWM73ZCXTN62AT2REYQDD5ZKPFMDZD/https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-4947