CVE-2026-3086

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Se requiere interacci\u00f3n con esta biblioteca para explotar esta vulnerabilidad, pero los vectores de ataque pueden variar dependiendo de la implementaci\u00f3n.\n\nLa falla espec\u00edfica existe en el procesamiento de unidades APS. El problema se debe a la falta de validaci\u00f3n adecuada de los datos proporcionados por el usuario, lo que puede resultar en una escritura m\u00e1s all\u00e1 del final de un b\u00fafer asignado. Un atacante puede aprovechar esta vulnerabilidad para ejecutar c\u00f3digo en el contexto del proceso actual. Fue ZDI-CAN-28911."}], "id": "CVE-2026-3086", "lastModified": "2026-07-15T02:20:58.430", "metrics": {"cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "zdi-disclosures@trendmicro.com", "type": "Secondary"}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-3086", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-03-17T00:00:00+00:00", "version": "2.0.3"}}]}, "published": "2026-03-16T14:19:46.767", "references": [{"source": "zdi-disclosures@trendmicro.com", "tags": ["Vendor Advisory"], "url": "https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/025d59cf3459c2903f0384b6b94bc3235e177b53"}, {"source": "zdi-disclosures@trendmicro.com", "tags": ["Third Party Advisory"], "url": "https://www.zerodayinitiative.com/advisories/ZDI-26-170/"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/security/cve/CVE-2026-3086"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2447493"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-3086.json"}], "sourceIdentifier": "zdi-disclosures@trendmicro.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "zdi-disclosures@trendmicro.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-787"}], "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "type": "Secondary"}]}

{"bugzilla": {"description": "GStreamer: GStreamer: Remote Code Execution via Out-Of-Bounds Write in H.266 Codec Parser", "id": "2447493", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2447493"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.8", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-787", "details": ["A flaw was found in GStreamer. A remote attacker could exploit this out-of-bounds write vulnerability by providing specially crafted H.266 video data. This issue, specifically within the processing of Adaptation Parameter Set (APS) units, stems from insufficient validation of user-supplied data, leading to a write beyond the allocated buffer. Successful exploitation allows the attacker to execute arbitrary code on the system where GStreamer is running."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."}, "name": "CVE-2026-3086", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "gstreamer1", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "gstreamer", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "gstreamer", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "gstreamer1", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "gstreamer1", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "mingw-gstreamer1", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "gstreamer1", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-03-13T20:40:12Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-3086\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-3086\nhttps://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/025d59cf3459c2903f0384b6b94bc3235e177b53\nhttps://www.zerodayinitiative.com/advisories/ZDI-26-170/"], "statement": "This vulnerability is rated as IMPORTANT. It affects the GStreamer H.266 Codec Parser, which is included in Red Hat Enterprise Linux versions 6, 7, 8, 9, and 10. Exploitation requires processing specially crafted H.266 media content, which could lead to remote code execution in the context of the current process.", "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "1c6e163aa33962f5ee4a87d29319ccdd5cb67612"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "GStreamer", "source": "cna", "vendor": "GStreamer"}, "product": "gstreamer", "vendor": "gstreamer"}], "analysis": {"en": {"generated_at": "2026-03-17T20:41:13.169827+00:00", "value": {"mitigation_remediation": ["Apply the latest GStreamer update that addresses CVE-2026-3086", "If a patch is not yet available, restrict or isolate processes that load H.266 streams from untrusted sources", "Configure security monitoring to detect anomalous crashes or memory corruption events tied to GStreamer"], "summary": {"action": "Apply Update", "impact": "Remote Code Execution"}, "threat_synthesis": {"affected_systems": "Affected software is the GStreamer multimedia framework. No specific version information is provided in the available data, so all installations that use the H.266 parser may be impacted until a patch is applied.", "description_and_impact": "GStreamer\u2019s H.266 codec parser contains an out\u2011of\u2011bounds write flaw (CWE\u2011787). The vulnerability allows an attacker to write data past the end of a buffer while parsing APS units, leading to arbitrary code execution in the context of the current process. The vendor notes that this flaw results from a lack of proper validation of user\u2011supplied data and that an attacker can leverage it to execute code.", "risk_and_exploitability": "The CVSS score of 7.8 indicates a high severity, and the EPSS score of less than 1\u202f% indicates a low likelihood of current exploitation. The vulnerability is not listed in the CISA KEV catalog. The attack likely requires an application that processes H.266 streams to provide crafted data to the parser; thus the vector is indirect and depends on the context in which GStreamer is used. As no official workaround is published, organizations should treat this as a vulnerability that can be mitigated by updating the affected component."}}}}, "created": "2026-03-16T09:23:10.211040+00:00", "updated": "2026-03-23T13:39:40.051224+00:00", "vendors": ["gstreamer", "gstreamer$PRODUCT$gstreamer"]}