# CVE-2023-3079: Google Chromium V8 Type Confusion Vulnerability

Source: https://junglewise.ai/threats/cve-2023-3079-google-chromium-v8-type-confusion-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2023-06-07. Updated: 2026-05-10  
License: CC BY 4.0 with a link back

CVE-2023-3079 · Severity: critical · CVSS 8.8 · Exploited in the wild · Published 2023-06-07

A type confusion vulnerability in the V8 engine of Google Chromium allows a remote attacker to exploit heap corruption via a specially crafted HTML page. This vulnerability is known to be exploited in the wild and affects various Chromium-based browsers and downstream applications.

Technologies: [Google Chromium V8](https://junglewise.ai/threats/technologies/chromium-v8). Vendors: [Google](https://junglewise.ai/threats/vendors/google).

## Quick answers

**Is CVE-2023-3079 exploited in the wild?** Yes. CVE-2023-3079 is known to be exploited in the wild, first recorded on 7 June 2023. Treat it as urgent.

**How severe is CVE-2023-3079?** Critical severity, with a CVSS score of 8.8, published 7 June 2023.

**Which products and versions are affected?** Google Chrome prior to 114.0.5735.110; Couchbase Couchbase Server up to (excluding) 7.1.5, 7.2.0; Fedora Project Fedora 37, 38.

**Is there a fix for CVE-2023-3079?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2023-3079 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2023-3079?** Check whether you run Google Chromium V8. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Google Chrome prior to 114.0.5735.110
- Couchbase Couchbase Server up to (excluding) 7.1.5, 7.2.0
- Fedora Project Fedora 37, 38

## Timeline

- 2023-06-07: disclosed
- 2023-06-07: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
- 2023-06-07: advisory: NVD publication date

## Related threats

- [Google Chromium V8 out-of-bounds write in JavaScript engine](https://junglewise.ai/threats/cve-2026-87491-google-chromium-v8-out-of-bounds-write-in-javascript-engine)
- [Google Chromium V8 type confusion vulnerability](https://junglewise.ai/threats/cve-2026-85046-google-chromium-v8-type-confusion-vulnerability)
- [Google Chrome V8 out of bounds read and write](https://junglewise.ai/threats/cve-2026-11645-google-chrome-v8-out-of-bounds-read-and-write)
- [Google Chromium V8 memory corruption in JavaScript engine](https://junglewise.ai/threats/cve-2026-3910-google-chromium-v8-memory-corruption-in-javascript-engine)
- [Google Chrome type confusion in V8 engine](https://junglewise.ai/threats/cve-2025-13223-google-chrome-type-confusion-in-v8-engine)