CVE-2025-62821

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:microsoft:heif_image_extension:1.2.22.0:*:*:*:*:*:*:*", "matchCriteriaId": "85242309-6F89-43F2-BFEA-16747B40E755", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Microsoft HEIF Image Extensions 1.2.22.0 has an out-of-bounds read because CHEIFItemInfoEntry_GetDataSize can return success while leaving the reported data size as 0. This causes a caller to make a 1-byte allocation. Later, CopyPixels computes copy_size = stride * abs(roi_height) but does not check the source buffer length before a memmove call."}, {"lang": "es", "value": "Microsoft HEIF Image Extensions 1.2.22.0 tiene una lectura fuera de l\u00edmites porque CHEIFItemInfoEntry_GetDataSize puede devolver \u00e9xito mientras deja el tama\u00f1o de datos reportado como 0. Esto provoca que un llamador realice una asignaci\u00f3n de 1 byte. M\u00e1s tarde, CopyPixels calcula copy_size = stride * abs(roi_height) pero no comprueba la longitud del b\u00fafer de origen antes de una llamada a memmove."}], "id": "CVE-2025-62821", "lastModified": "2026-10-12T22:10:00.247", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.2, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-62821", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-06-22T15:43:03.426825Z", "version": "2.0.3"}}]}, "published": "2026-06-19T14:16:21.570", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/hyunjungg/CVE-2025-62821"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/hyunjungg/CVE-2025-62821"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "1.2.22.0"}}], "enrichment": {"confidence": 80.0, "confidence_source": "inferred", "scores": [{"score": 80.0, "source": "inferred"}, {"score": 98.0, "source": "matching"}]}, "original": {"product": "n/a", "source": "cna", "vendor": "n/a"}, "product": "heif_image_extension", "vendor": "microsoft"}], "created": "2026-06-19T20:30:04.657501+00:00", "title": "Out-of-Bounds Read in Microsoft HEIF Image Extensions Facilitates Potential Memory Corruption", "updated": "2026-06-22T19:30:06.817301+00:00", "vendors": ["microsoft", "microsoft$PRODUCT$heif_image_extension"], "weaknesses": ["CWE-125", "CWE-20"]}