{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-15171", "assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a", "state": "PUBLISHED", "assignerShortName": "GitLab", "dateReserved": "2026-07-08T20:45:53.857Z", "datePublished": "2026-07-08T20:51:10.283Z", "dateUpdated": "2026-07-08T20:51:10.283Z"}, "containers": {"cna": {"title": "NULL Pointer Dereference in Wireshark", "descriptions": [{"lang": "en", "value": "SSH protocol dissector crash in Wireshark 4.6.0 to 4.6.6 and 4.4.0 to 4.4.16 allows denial of service"}], "affected": [{"vendor": "Wireshark Foundation", "product": "Wireshark", "versions": [{"version": "4.6.0", "status": "affected", "lessThan": "4.6.7", "versionType": "semver"}, {"version": "4.4.0", "status": "affected", "lessThan": "4.4.17", "versionType": "semver"}], "defaultStatus": "unaffected"}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-476: NULL Pointer Dereference", "cweId": "CWE-476", "type": "CWE"}]}], "references": [{"url": "https://www.wireshark.org/security/wnpa-sec-2026-55.html"}, {"url": "https://gitlab.com/wireshark/wireshark/-/work_items/21378"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM"}}], "solutions": [{"lang": "en", "value": "Upgrade to version 4.6.7 or above"}], "credits": [{"lang": "en", "value": "Dmitrijs Trizna", "type": "finder"}], "providerMetadata": {"orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a", "shortName": "GitLab", "dateUpdated": "2026-07-08T20:51:10.283Z"}}}}

{}

{}

{"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"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.6.0,4.6.7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.4.0,4.4.17)"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Wireshark", "source": "cna", "vendor": "Wireshark Foundation"}, "product": "wireshark", "vendor": "wireshark"}], "created": "2026-07-08T22:45:08.453164+00:00", "updated": "2026-07-08T22:45:08.453187+00:00", "vendors": ["wireshark", "wireshark$PRODUCT$wireshark"]}