{"id":"CVE-2023-7024","published":"2023-12-21T23:15:11Z","modified":"2026-06-17T06:51:53Z","title":"Google Chromium WebRTC Heap Buffer Overflow Vulnerability","vendor":"Google","product":"Chromium WebRTC","tier":"core","eol":null,"description":{"text":"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)","provenance":"source","from":"NVD"},"summary":{"text":"A heap buffer overflow in the WebRTC component of Google Chrome (Chromium WebRTC) allows heap corruption. An attacker who can get a victim to load a crafted HTML page can potentially exploit this, which requires user interaction and no prior authentication or special network position.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:11:05Z"},"cvss":{"score":8.8,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.06671,"percentile":0.93875,"date":"2026-10-29","provenance":"source"},"kev":{"dateAdded":"2024-01-02","dueDate":"2024-01-23","ransomware":false,"requiredAction":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","notes":"This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. Please check with specific vendors for information on patching status. For more information, please see: https://chromereleases.googleblog.com/2023/12/stable-channel-update-for-desktop_20.html;  https://nvd.nist.gov/vuln/detail/CVE-2023-7024","provenance":"source"},"vulncheckKev":{"dateAdded":"2023-12-19","exploitedFirstSeen":"2023-12-19","ransomware":false,"evidence":[{"url":"https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit","date":"2023-12-19"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2024-01-02"},{"url":"https://storage.googleapis.com/gweb-uniblog-publish-prod/documents/Buying_Spying_-_Insights_into_Commercial_Surveillance_Vendors.pdf","date":"2024-02-06"},{"url":"https://thehackernews.com/2024/02/global-coalition-and-tech-giants-unite.html","date":"2024-02-07"},{"url":"https://go.recordedfuture.com/hubfs/reports/ta-2024-0321.pdf","date":"2024-03-21"}],"evidenceTotal":5,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 30, 2026","url":"https://otx.alienvault.com/pulse/6ae35d889ea92b4ce19c2680","created":"2026-10-29"},{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"Actively_Exploited_Kev | Oct 20, 2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"},{"name":"Actively_Exploited_Kev | Oct 19, 2026","url":"https://otx.alienvault.com/pulse/6ad4dda174e5797d0bd238b7","created":"2026-10-18"}],"provenance":"machine"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"references":[{"url":"https://chromereleases.googleblog.com/2023/12/stable-channel-update-for-desktop_20.html","tags":["Vendor Advisory"]},{"url":"https://crbug.com/1513170","tags":["Exploit","Issue Tracking"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6M6AJDHUL6EDPURWQXGLUFJNDE7SOJT3/","tags":["Broken Link","Mailing List"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U6JL4VHZMHFGEGQYTF74533ZNRWMCMMR/","tags":["Broken Link","Mailing List"]},{"url":"https://security.gentoo.org/glsa/202401-34","tags":["Third Party Advisory"]},{"url":"https://www.debian.org/security/2023/dsa-5585","tags":["Mailing List"]},{"url":"https://chromereleases.googleblog.com/2023/12/stable-channel-update-for-desktop_20.html","tags":["Vendor Advisory"]},{"url":"https://crbug.com/1513170","tags":["Exploit","Issue Tracking"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6M6AJDHUL6EDPURWQXGLUFJNDE7SOJT3/","tags":["Broken Link","Mailing List"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U6JL4VHZMHFGEGQYTF74533ZNRWMCMMR/","tags":["Broken Link","Mailing List"]},{"url":"https://security.gentoo.org/glsa/202401-34","tags":["Third Party Advisory"]},{"url":"https://www.debian.org/security/2023/dsa-5585","tags":["Mailing List"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-7024","tags":["US Government Resource"]}],"techniques":[{"id":"T1189","name":"Drive-by Compromise","tactics":["initial-access"],"provenance":"source","basis":"ctid-kev","bases":["ctid-kev"],"basisDetail":"CTID Mappings Explorer KEV 07/28/2025 (ATT&CK 16.1); capability: Buffer Overflow","mappingType":"exploitation_technique","evidence":[],"comment":"This heap buffer overflow vulnerability is exploited by a remote attacker via a crafted HTML page. This vulnerability has been leveraged by the NSO group to enable remote code execution within a browser's WebRTC component to install the spyware Pegasus on victim endpoints.","confidence":"high"},{"id":"T1574","name":"Hijack Execution Flow","tactics":["execution","stealth"],"provenance":"source","basis":"ctid-kev","bases":["ctid-kev"],"basisDetail":"CTID Mappings Explorer KEV 07/28/2025 (ATT&CK 16.1); capability: Buffer Overflow","mappingType":"primary_impact","evidence":[],"comment":"This heap buffer overflow vulnerability is exploited by a remote attacker via a crafted HTML page. This vulnerability has been leveraged by the NSO group to enable remote code execution within a browser's WebRTC component to install the spyware Pegasus on victim endpoints.","confidence":"high"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2023-59215","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2023-59215","exploited":true,"exploitedSince":"2024-01-02","provenance":"source"},"exploits":[],"exploitSources":{"pocGithub":{"count":1,"skipped":0,"earliest":"2025-11-07","earliestUrl":"https://github.com/aka76bm/google-chrome-emergency-update","repos":[{"name":"aka76bm/google-chrome-emergency-update","url":"https://github.com/aka76bm/google-chrome-emergency-update","stars":1,"created":"2025-11-07"}]},"first":{"date":"2025-11-07","source":"PoC-in-GitHub","url":"https://github.com/aka76bm/google-chrome-emergency-update"},"provenance":"source"},"exploitRefs":["https://crbug.com/1513170"],"flow":[{"stage":"exploitation","techniques":["T1189"],"provenance":"source"},{"stage":"primary","techniques":["T1574"],"provenance":"source"}],"timeline":[{"date":"2023-12-19","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit","provenance":"source"},{"date":"2023-12-21","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-7024","provenance":"source"},{"date":"2024-01-02","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2024-01-02","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2023-59215","provenance":"source"},{"date":"2025-11-07","kind":"exploit-public","label":"First public exploit: PoC-in-GitHub","url":"https://github.com/aka76bm/google-chrome-emergency-update","provenance":"source"}],"speed":{"daysToPublicExploit":687,"firstExploitFrom":"PoC-in-GitHub","daysToKev":12},"priority":{"score":67.9,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 1046 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":18.77,"detail":"percentile 0.9387"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"1 NVD reference tagged Exploit; 1 PoC-in-GitHub repo"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"50 pulses"},{"name":"CVSS severity","points":6.16,"detail":"base score 8.8"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]},"lineage":{"familyId":"fam-class-google-chrome-cwe-787"}}