CVE-2026-38426

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Buffer Overflow vulnerability in arendst Tasmota v.15.3.0.3 and before allows a remote attacker to execute arbitrary code via the xdrv_10_scripter.ino, fetch_jpg(), jpg_task.boundary[40], strcpy() function."}, {"lang": "es", "value": "Vulnerabilidad de desbordamiento de b\u00fafer en arendst Tasmota v.15.3.0.3 y anteriores permite a un atacante remoto ejecutar c\u00f3digo arbitrario a trav\u00e9s de la funci\u00f3n xdrv_10_scripter.ino, fetch_jpg(), jpg_task.boundary[40], strcpy()."}], "id": "CVE-2026-38426", "lastModified": "2026-10-23T22:10:00.160", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.3, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.4, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-38426", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-05-27T18:18:20.656756Z", "version": "2.0.3"}}]}, "published": "2026-05-27T14:16:45.880", "references": [{"source": "cve@mitre.org", "url": "https://github.com/arendst/Tasmota/blob/c207cc2/tasmota/tasmota_xdrv_driver/xdrv_10_scripter.ino"}, {"source": "cve@mitre.org", "url": "https://github.com/sermikr0/CVE-2026-38426"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/sermikr0/CVE-2026-38426"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-120"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,15.3.0.3]"}}], "enrichment": {"confidence": 80.0, "confidence_source": "inferred", "scores": [{"score": 80.0, "source": "inferred"}]}, "original": {"product": "n/a", "source": "cna", "vendor": "n/a"}, "product": "tasmota", "vendor": "arendst"}], "created": "2026-05-27T17:00:17.682647+00:00", "title": "Remote Code Execution via Buffer Overflow in Tasmota JPEG Processing", "updated": "2026-05-30T21:22:34.709396+00:00", "vendors": ["arendst", "arendst$PRODUCT$tasmota"]}