CVE-2026-21555

{"id": "CVE-2026-21555", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-21555", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-03T11:25:03.596425Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security@unisoc.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@unisoc.com", "affectedData": [{"vendor": "Unisoc (Shanghai) Technologies Co., Ltd.", "product": "UDX710", "versions": [{"status": "affected", "version": "Yocto"}], "defaultStatus": "unaffected"}]}], "published": "2026-08-03T08:17:20.257", "references": [{"url": "https://www.unisoc.com/en/support/product-security-bulletin/2084109408382668801", "source": "security@unisoc.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-20"}]}], "descriptions": [{"lang": "en", "value": "In modem, there is a possible improper input validation. This could lead to remote denial of service with no additional execution privileges needed"}], "lastModified": "2026-08-28T18:52:20.387", "sourceIdentifier": "security@unisoc.com"}