CVE-2023-7024: Google Chromium WebRTC Heap Buffer Overflow Vulnerability

Is it exploited?

Yes. CISA added it to the Known Exploited Vulnerabilities catalog on 2 Jan 2024, 12 days after the CVE record was published.

How likely is exploitation in the next 30 days?

6.7%

EPSS score, percentile 93.9 of all scored records

How severe?

8.8 High

CVSS v3.1 base score, from CISA's enrichment of the record

What should I do?

Required action (CISA), due 23 Jan 2024: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

The CVE record links no vendor advisory, patch or mitigation.

Which versions are affected?

Affected: 120.0.6099.129 up to, not including, 120.0.6099.129

Versions by product

Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

What to do

CISA due date for this action: 23 January 2024.

Advisories and patches

The CVE record links no vendor advisory, patch or mitigation.

Linked from CISA's catalog entry

• https://chromereleases.googleblog.com/2023/12/stable-channel-update-for-desktop_20.html
• https://nvd.nist.gov/vuln/detail/CVE-2023-7024

Affected products and versions

As listed in the CVE record.

Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

About this vulnerability

Google Chromium WebRTC, an open-source project providing web browsers with real-time communication, contains a heap buffer overflow vulnerability that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could impact web browsers using WebRTC, including but not limited to Google Chrome.

Summary: CISA's KEV catalog, as of 28 Oct 2026.

• CISA added CVE-2023-7024 to its Known Exploited Vulnerabilities (KEV) catalog on 2 Jan 2024.
• CISA's ransomware flag for this entry is "Unknown": no evidence of ransomware use in the catalog, which is not proof of none.
• The due date CISA sets for the required action is 23 Jan 2024.
• The CVE record was published on 21 Dec 2023, 12 days before it was added to KEV.
• The CVE record carries a CVSS v3.1 base score of 8.8 (High), taken from CISA's enrichment of the record.
• FIRST's EPSS model puts the probability of exploitation in the next 30 days at 6.7% (percentile 93.9), as of 28 Oct 2026.
• CISA's SSVC assessment in the CVE record: exploitation active, automatable no, technical impact total.

Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026. About the data.

Description

Heap buffer overflow in WebRTC in Google Chrome prior to 120.0.6099.129 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

Weakness

• CWE-787: Out-of-bounds Write

CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record and the KEV entry.

Timeline

References

• chromereleases.googleblog.com
• crbug.com
• debian.org
• lists.fedoraproject.org
• lists.fedoraproject.org
• security.gentoo.org

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