{"id":"CVE-2026-76919","title":"Use of Uninitialized Variable in Wireshark","summary":"ESS protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","cvssSource":"cna","cwe":["CWE-457"],"vendor":"Wireshark Foundation","product":"Wireshark","affected":["Wireshark >= 4.6.0 < 4.6.8","Wireshark >= 4.4.0 < 4.4.18"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-08-20T15:07:55.554982Z"},"published":"2026-08-19","updated":"2026-09-17","sourceUpdated":"2026-09-17T18:47:52.348Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-76919","references":[{"url":"https://www.wireshark.org/security/wnpa-sec-2026-86.html"},{"url":"https://gitlab.com/wireshark/wireshark/-/work_items/21467"}],"tags":["cve.org"],"epss":0.00269,"epssPercentile":0.19291,"ingestedAt":"2026-09-17T19:26:25.339Z","slug":"CVE-2026-76919","body":"## Overview\n\nESS protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service\n\n## Affected\n\n- `Wireshark >= 4.6.0 < 4.6.8`\n- `Wireshark >= 4.4.0 < 4.4.18`\n\n## Remediation\n\nUpgrade to version 4.6.8 or above","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}