CVE-2026-63447

{"id": "CVE-2026-63447", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-63447", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-09-21T18:21:07.869708Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "OISF", "product": "suricata", "versions": [{"status": "affected", "version": ">= 8.0.5, < 8.0.6"}]}]}], "published": "2026-09-18T21:17:03.913", "references": [{"url": "https://github.com/OISF/suricata/commit/15bf91c5ccbbbf640cd042e1c96974b262549385", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/OISF/suricata/commit/82c41905589305e8389ceb793907ccb74798aee5", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/OISF/suricata/releases/tag/suricata-8.0.6", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/OISF/suricata/security/advisories/GHSA-w394-3g33-3jg9", "tags": ["Mitigation", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://redmine.openinfosecfoundation.org/issues/8592", "tags": ["Permissions Required"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-407"}]}], "descriptions": [{"lang": "en", "value": "Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.5 until 8.0.6, the FTP parser in src/app-layer-ftp.c can continue allocating transactions after app-layer.protocols.ftp.max-tx is reached while processing one large chunk of FTP command data. The oversized transaction list is repeatedly processed with quadratic complexity after the too_many_transactions event, allowing crafted FTP traffic to degrade packet processing, reduce monitoring visibility, or cause denial of service. This issue is fixed in version 8.0.6."}], "lastModified": "2026-09-28T18:34:20.557", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:oisf:suricata:8.0.5:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F6DB18F1-6359-40D3-B5BA-A66CFF6BEE87"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}