{"id":"CVE-2023-38537","aliases":["EUVD-2023-42336","GHSA-5crw-452c-5358"],"status":"published","title":"A race condition in a network transport subsystem led to a heap use-after-free issue in...","description":"A race condition in a network transport subsystem led to a heap use-after-free issue in established or unsilenced incoming audio/video calls that could have resulted in app termination or unexpected control flow with very low probability.","severity":{"version":"3.1","score":5.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00278,"percentile":0.20539,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-362","CWE-366"],"published":"2023-10-04T19:09:58Z","modified":"2026-06-17T06:10:40Z","products":[{"vendor":"facebook","product":"whatsapp business for android"},{"vendor":"facebook","product":"whatsapp business for ios"},{"vendor":"facebook","product":"whatsapp desktop for mac"},{"vendor":"facebook","product":"whatsapp desktop for windows"},{"vendor":"facebook","product":"whatsapp for android"},{"vendor":"facebook","product":"whatsapp for ios"},{"vendor":"whatsapp","product":"whatsapp"}],"references":[{"url":"https://www.whatsapp.com/security/advisories/2023/","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-38537"},{"url":"https://www.whatsapp.com/security/advisories/2023"},{"url":"https://github.com/advisories/GHSA-5crw-452c-5358"}],"sources":{"cve":[{"id":"CVE-2023-38537","description":"A race condition in a network transport subsystem led to a heap use-after-free issue in established or unsilenced incoming audio/video calls that could have resulted in app termination or unexpected control flow with very low probability.","status":"published","published":"2023-10-04T19:09:58.086Z","modified":"2024-09-19T15:27:23.286Z","cvss":[{"version":"3.1","score":5.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:35:29.772612Z"}],"euvd":[{"id":"EUVD-2023-42336","description":"A race condition in a network transport subsystem led to a heap use-after-free issue in established or unsilenced incoming audio/video calls that could have resulted in app termination or unexpected control flow with very low probability.","status":"published","published":"2023-10-04T19:09:58Z","modified":"2024-09-19T15:27:23Z","cvss":[{"version":"3.1","score":5.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-03T00:28:19.06347Z"}],"ghsa":[{"id":"GHSA-5crw-452c-5358","title":"A race condition in a network transport subsystem led to a heap use-after-free issue in...","description":"A race condition in a network transport subsystem led to a heap use-after-free issue in established or unsilenced incoming audio/video calls that could have resulted in app termination or unexpected control flow with very low probability.","status":"published","published":"2023-10-04T21:30:22Z","modified":"2024-04-11T21:08:49Z","cvss":[{"version":"3.1","score":5.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"cwes":["CWE-362","CWE-366"],"updated_at":"2026-11-02T14:57:07.421443Z"}],"nvd":[{"id":"CVE-2023-38537","description":"A race condition in a network transport subsystem led to a heap use-after-free issue in established or unsilenced incoming audio/video calls that could have resulted in app termination or unexpected control flow with very low probability.","status":"published","published":"2023-10-04T20:15:09.927Z","modified":"2026-06-17T06:10:40.96Z","cvss":[{"version":"3.1","score":5.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium","assessor":"primary"}],"cwes":["CWE-362"],"updated_at":"2026-11-02T14:08:35.022405Z"}]}}