CVE-2026-55944

{"id": "CVE-2026-55944", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-55944", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-07-14T18:01:05.898620Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "secure@microsoft.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "affected": [{"source": "secure@microsoft.com", "affectedData": [{"vendor": "Microsoft", "product": "Microsoft Dynamics NAV 2018", "versions": [{"status": "affected", "version": "1.0", "lessThan": "11.0.50704.0", "versionType": "custom"}]}]}], "published": "2026-07-14T18:18:21.850", "references": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55944", "tags": ["Vendor Advisory", "Patch"], "source": "secure@microsoft.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "secure@microsoft.com", "description": [{"lang": "en", "value": "CWE-502"}]}], "descriptions": [{"lang": "en", "value": "Deserialization of untrusted data in Microsoft Dynamics NAV allows an unauthorized attacker to execute code over a network."}], "lastModified": "2026-07-22T16:42:03.610", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:microsoft:dynamics_nav:2018:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FA8EA7FF-BEE3-47A5-B711-83191CBFCE40"}], "operator": "OR"}]}], "sourceIdentifier": "secure@microsoft.com"}