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{"bugzilla": {"description": "wireshark: wireshark: Denial of Service via heap-based buffer overflow in sharkd", "id": "2543027", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2543027"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.3", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "status": "draft"}, "cwe": "CWE-787", "details": ["A flaw was found in Wireshark. A heap-based buffer overflow in the sharkd utility can cause the application to crash, resulting in a Denial of Service (DoS). An attacker could exploit this vulnerability by convincing a user to process specially crafted input."], "mitigation": {"lang": "en:us", "value": "To mitigate this flaw, restrict access to the sharkd daemon or remove the package if it is not required:\n1. Terminate running sharkd processes if daemonized packet analysis is not required:\nkillall sharkd\n2. If sharkd must be run over a network socket, bind it only to localhost or restrict incoming network traffic to trusted hosts using firewall rules:\nfirewall-cmd --remove-port=<port>/tcp --permanent\nfirewall-cmd --reload\nWarning: Reloading firewall rules may temporarily disrupt active network connections.\n3. If Wireshark command-line utilities are not necessary, remove the package providing the tool:\ndnf remove wireshark-cli\nCaveat: Removing wireshark-cli will remove related packet capture and dissection tools such as tshark."}, "name": "CVE-2026-95388", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Under investigation", "package_name": "wireshark", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Under investigation", "package_name": "wireshark", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Under investigation", "package_name": "wireshark", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Under investigation", "package_name": "wireshark", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Under investigation", "package_name": "wireshark", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-09-29T09:31:13Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-95388\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-95388\nhttps://gitlab.com/wireshark/wireshark/-/work_items/21545\nhttps://www.wireshark.org/security/wnpa-sec-2026-101.html"], "threat_severity": "Moderate"}

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