CVE-2023-3079

CVE-2023-3079 is a high-severity vulnerability in Google Chrome with a CVSS 3.x base score of 8.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2023-06-07). The underlying weakness is classified as CWE-843.

Key facts

• Severity: High (CVSS 3.x base score 8.8)
• EPSS exploit prediction: 33% (98th percentile)
• Actively exploited: Yes — listed in CISA KEV (added 2023-06-07)
• EU (EUVD) id: EUVD-2023-43770
• EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2023-06-07)
• Weakness: CWE-843
• Affected product: Google Chrome
• Published: 2023-06-05
• Last modified: 2026-06-17

Description

Type confusion in V8 in Google Chrome prior to 114.0.5735.110 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

Frequently asked questions

What is CVE-2023-3079?

Type confusion in V8 in Google Chrome prior to 114.0.5735.110 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

How severe is CVE-2023-3079?

CVE-2023-3079 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-3079 being actively exploited?

Yes. CVE-2023-3079 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2023-06-07, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2023-3079?

CVE-2023-3079 primarily affects Google Chrome. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-3079?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2023-3079 have an EU (EUVD) identifier?

Yes. CVE-2023-3079 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-43770. It is also flagged as exploited in the EUVD (since 2023-06-07).

When was CVE-2023-3079 published?

CVE-2023-3079 was published on 2023-06-05 and last updated on 2026-06-17.

References

• http://packetstormsecurity.com/files/176211/Chrome-V8-Type-Confusion.html
• http://packetstormsecurity.com/files/176212/Chrome-V8-Type-Confusion-New-Sandbox-Escape.html
• https://chromereleases.googleblog.com/2023/06/stable-channel-update-for-desktop.html
• https://crbug.com/1450481
• https://lists.fedoraproject.org/archives/list/[email protected]/message/DYTXO5E3FI3I2ETDP3HF4SHYYTFMKMIC/
• https://lists.fedoraproject.org/archives/list/[email protected]/message/U4OXTNIZY4JYHJT7CVLPAJQILI6BISVM/
• https://security.gentoo.org/glsa/202311-11
• https://security.gentoo.org/glsa/202401-34
• https://www.couchbase.com/alerts/
• https://www.debian.org/security/2023/dsa-5420
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-3079

Affected products (9)

• cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
• cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
• cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
• cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
• cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*
• cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
• cpe:2.3:a:couchbase:couchbase_server:*:*:*:*:*:*:*:*
• cpe:2.3:a:couchbase:couchbase_server:7.2.0:*:*:*:*:*:*:*

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Other CWE-843 vulnerabilities

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• CVE-2023-22579 — Critical (CVSS 9.9): Due to improper parameter filtering in the sequalize js library, can a attacker peform injection.
• CVE-2026-13776 — Critical (CVSS 9.8): Type Confusion in Dawn in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised the…
• CVE-2026-43038 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: ipv6: icmp: clear skb2->cb[] in…
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