CVE-2026-15171

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{"bugzilla": {"description": "wireshark: Wireshark: Denial of service via SSH protocol dissector crash", "id": "2498296", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2498296"}, "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-1286", "details": ["A flaw was found in Wireshark's SSH (Secure Shell) protocol dissector. A remote attacker could craft a malicious network capture file that, when opened by a user, would cause the Wireshark application to crash. This vulnerability leads to a denial of service, preventing the user from analyzing network traffic."], "mitigation": {"lang": "en:us", "value": "Users should avoid opening untrusted or suspicious network capture files with Wireshark. Running Wireshark in a sandboxed environment can further limit the impact of potential crashes. No direct configuration options are available to prevent this flaw without affecting Wireshark's core functionality."}, "name": "CVE-2026-15171", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "wireshark", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "wireshark", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "wireshark", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "wireshark", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "wireshark", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-07-08T20:51:10Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-15171\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-15171\nhttps://gitlab.com/wireshark/wireshark/-/work_items/21378\nhttps://www.wireshark.org/security/wnpa-sec-2026-55.html"], "statement": "Moderate: A denial of service flaw exists in Wireshark's SSH protocol dissector, where processing a specially crafted network capture file can lead to application termination. This issue requires user interaction to open a malicious file, limiting its impact to the availability of the Wireshark application for network traffic analysis.", "threat_severity": "Moderate"}

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