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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Wireshark", "vendor": "Wireshark Foundation", "versions": [{"lessThan": "4.6.8", "status": "affected", "version": "4.6.0", "versionType": "semver"}, {"lessThan": "4.4.18", "status": "affected", "version": "4.4.0", "versionType": "semver"}]}], "source": "cve@gitlab.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Catapult DCT2000 file parser crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service"}], "id": "CVE-2026-76883", "lastModified": "2026-08-28T15:44:39.323", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 4.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 3.6, "source": "cve@gitlab.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-76883", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-08-20T14:15:11.039192Z", "version": "2.0.3"}}]}, "published": "2026-08-19T23:16:19.190", "references": [{"source": "cve@gitlab.com", "url": "https://gitlab.com/wireshark/wireshark/-/work_items/21427"}, {"source": "cve@gitlab.com", "url": "https://www.wireshark.org/security/wnpa-sec-2026-74.html"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://gitlab.com/wireshark/wireshark/-/work_items/21427"}], "sourceIdentifier": "cve@gitlab.com", "vulnStatus": "Undergoing Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-122"}], "source": "cve@gitlab.com", "type": "Secondary"}]}

{"bugzilla": {"description": "wireshark: Wireshark: Denial of Service via heap-based buffer overflow in Catapult DCT2000 file parser", "id": "2520080", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2520080"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-120", "details": ["Catapult DCT2000 file parser crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service", "A flaw was found in Wireshark. A heap-based buffer overflow vulnerability exists within the Catapult DCT2000 file parser. This vulnerability could allow a local attacker to trigger a crash, leading to a denial of service, by enticing a user to open a specially crafted file."], "mitigation": {"lang": "en:us", "value": "Do not open untrusted packet capture files or capture traffic from untrusted networks with Wireshark."}, "name": "CVE-2026-76883", "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": "Not affected", "package_name": "wireshark", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "wireshark", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "wireshark", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "wireshark", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-19T22:35:09Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-76883\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-76883\nhttps://gitlab.com/wireshark/wireshark/-/work_items/21427\nhttps://www.wireshark.org/security/wnpa-sec-2026-74.html"], "statement": "A flaw was found in the Catapult DCT2000 file parser in Wireshark versions 4.4.0 through 4.4.17 and 4.6.0 through 4.6.7. Red Hat Enterprise Linux 6, 7, 8, and 9 ship Wireshark versions prior to the affected range and are not vulnerable. Red Hat Enterprise Linux 10 and Red Hat In-Vehicle OS ship an affected version of Wireshark.", "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.6.0,4.6.8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.4.0,4.4.18)"}}], "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": "2026-08-20T00:30:04.310139+00:00", "updated": "2026-08-22T02:30:17.184306+00:00", "vendors": ["wireshark", "wireshark$PRODUCT$wireshark"]}