{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-95388", "assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a", "state": "PUBLISHED", "assignerShortName": "GitLab", "dateReserved": "2026-09-22T05:34:06.682Z", "datePublished": "2026-09-29T09:31:13.021Z", "dateUpdated": "2026-09-29T09:31:13.021Z"}, "containers": {"cna": {"title": "Heap-based Buffer Overflow in Wireshark", "descriptions": [{"lang": "en", "value": "Sharkd utility crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service"}], "affected": [{"vendor": "Wireshark Foundation", "product": "Wireshark", "repo": "https://gitlab.com/wireshark/wireshark", "versions": [{"version": "4.6.0", "status": "affected", "lessThan": "4.6.9", "versionType": "semver"}, {"version": "4.4.0", "status": "affected", "lessThan": "4.4.19", "versionType": "semver"}], "defaultStatus": "unaffected"}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-122: Heap-based Buffer Overflow", "cweId": "CWE-122", "type": "CWE"}]}], "references": [{"url": "https://www.wireshark.org/security/wnpa-sec-2026-101.html"}, {"url": "https://gitlab.com/wireshark/wireshark/-/work_items/21545"}], "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 4.6.9 or above"}], "credits": [{"lang": "en", "value": "Mayank Jangid (OpenSec Intelligence)", "type": "finder"}], "providerMetadata": {"orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a", "shortName": "GitLab", "dateUpdated": "2026-09-29T09:31:13.021Z"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Wireshark", "repo": "https://gitlab.com/wireshark/wireshark", "vendor": "Wireshark Foundation", "versions": [{"lessThan": "4.6.9", "status": "affected", "version": "4.6.0", "versionType": "semver"}, {"lessThan": "4.4.19", "status": "affected", "version": "4.4.0", "versionType": "semver"}]}], "source": "cve@gitlab.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Sharkd utility crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service"}], "id": "CVE-2026-95388", "lastModified": "2026-09-29T10:17:14.867", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "cve@gitlab.com", "type": "Secondary"}]}, "published": "2026-09-29T10:17:14.867", "references": [{"source": "cve@gitlab.com", "url": "https://gitlab.com/wireshark/wireshark/-/work_items/21545"}, {"source": "cve@gitlab.com", "url": "https://www.wireshark.org/security/wnpa-sec-2026-101.html"}], "sourceIdentifier": "cve@gitlab.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-122"}], "source": "cve@gitlab.com", "type": "Primary"}]}

{"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"}

{}