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{"bugzilla": {"description": "wireshark: Wireshark: Denial of service via Z39.50 protocol dissector crash", "id": "2498313", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2498313"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-131", "details": ["A flaw was found in Wireshark's Z39.50 protocol dissector. A heap buffer overflow can occur when the dissector processes malformed Z39.50 records with partial directory entries, as the pre-allocated array size is calculated using floor division and does not account for additional partial entries. An attacker could exploit this by convincing a user to open a specially crafted packet capture file, causing Wireshark to crash. This results in a denial of service."], "mitigation": {"lang": "en:us", "value": "Avoid opening capture files from untrusted sources."}, "name": "CVE-2026-15170", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "wireshark", "product_name": "Red Hat Enterprise Linux 10"}], "public_date": "2026-07-08T20:50:50Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-15170\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-15170\nhttps://gitlab.com/wireshark/wireshark/-/work_items/21397\nhttps://www.wireshark.org/security/wnpa-sec-2026-58.html"], "statement": "Moderate: A heap buffer overflow in Wireshark's Z39.50 protocol dissector can lead to a denial of service. This flaw requires user interaction, specifically opening a specially crafted packet capture file, limiting its immediate impact on typical server deployments.", "threat_severity": "Moderate"}