{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-4185", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "state": "PUBLISHED", "assignerShortName": "VulDB", "dateReserved": "2026-03-14T22:01:16.865Z", "datePublished": "2026-03-15T18:32:08.668Z", "dateUpdated": "2026-03-17T15:18:42.115Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-03-15T18:32:08.668Z"}, "title": "GPAC MP4Box swf_parse.c swf_def_bits_jpeg stack-based overflow", "problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-121", "lang": "en", "description": "Stack-based Buffer Overflow"}]}, {"descriptions": [{"type": "CWE", "cweId": "CWE-119", "lang": "en", "description": "Memory Corruption"}]}], "affected": [{"vendor": "n/a", "product": "GPAC", "versions": [{"version": "2.5-DEV-rev2167-gcc9d617c0-master", "status": "affected"}], "cpes": ["cpe:2.3:a:gpac:gpac:*:*:*:*:*:*:*:*"], "modules": ["MP4Box"]}], "descriptions": [{"lang": "en", "value": "A vulnerability was found in GPAC up to 2.5-DEV-rev2167-gcc9d617c0-master. This vulnerability affects the function swf_def_bits_jpeg of the file src/scene_manager/swf_parse.c of the component MP4Box. The manipulation of the argument szName results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been made public and could be used. The patch is identified as 8961c74f87ae3fe2d3352e622f7730ca96d50cf1. A patch should be applied to remediate this issue."}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 5.3, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P", "baseSeverity": "MEDIUM"}}, {"cvssV3_1": {"version": "3.1", "baseScore": 6.3, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C", "baseSeverity": "MEDIUM"}}, {"cvssV3_0": {"version": "3.0", "baseScore": 6.3, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C", "baseSeverity": "MEDIUM"}}, {"cvssV2_0": {"version": "2.0", "baseScore": 6.5, "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:OF/RC:C"}}], "timeline": [{"time": "2026-03-14T00:00:00.000Z", "lang": "en", "value": "Advisory disclosed"}, {"time": "2026-03-14T01:00:00.000Z", "lang": "en", "value": "VulDB entry created"}, {"time": "2026-03-14T23:06:23.000Z", "lang": "en", "value": "VulDB entry last update"}], "credits": [{"lang": "en", "value": "peterx (VulDB User)", "type": "reporter"}], "references": [{"url": "https://vuldb.com/?id.351091", "name": "VDB-351091 | GPAC MP4Box swf_parse.c swf_def_bits_jpeg stack-based overflow", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/?ctiid.351091", "name": "VDB-351091 | CTI Indicators (IOB, IOC, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/?submit.769840", "name": "Submit #769840 | gpac MP4Box MP4Box - GPAC version 2.5-DEV-rev2167-gcc9d617c0-master and earlier Stack-based Buffer Overflow", "tags": ["third-party-advisory"]}, {"url": "https://github.com/gpac/gpac/issues/3436", "tags": ["issue-tracking"]}, {"url": "https://github.com/PeterXukt/test_pocs/blob/main/gpac/test.swf", "tags": ["exploit"]}, {"url": "https://github.com/gpac/gpac/commit/8961c74f87ae3fe2d3352e622f7730ca96d50cf1", "tags": ["patch"]}, {"url": "https://github.com/gpac/gpac/", "tags": ["product"]}], "tags": ["x_open-source"]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-03-17T15:18:31.249419Z", "id": "CVE-2026-4185", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-17T15:18:42.115Z"}}]}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability was found in GPAC up to 2.5-DEV-rev2167-gcc9d617c0-master. This vulnerability affects the function swf_def_bits_jpeg of the file src/scene_manager/swf_parse.c of the component MP4Box. The manipulation of the argument szName results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been made public and could be used. The patch is identified as 8961c74f87ae3fe2d3352e622f7730ca96d50cf1. A patch should be applied to remediate this issue."}, {"lang": "es", "value": "Una vulnerabilidad fue encontrada en GPAC hasta 2.5-DEV-rev2167-gcc9d617c0-master. Esta vulnerabilidad afecta a la funci\u00f3n swf_def_bits_jpeg del archivo src/scene_manager/swf_parse.c del componente MP4Box. La manipulaci\u00f3n del argumento szName resulta en desbordamiento de b\u00fafer basado en pila. Es posible lanzar el ataque remotamente. El exploit ha sido hecho p\u00fablico y podr\u00eda ser usado. El parche se identifica como 8961c74f87ae3fe2d3352e622f7730ca96d50cf1. Un parche deber\u00eda aplicarse para remediar este problema."}], "id": "CVE-2026-4185", "lastModified": "2026-04-29T01:00:01.613", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 6.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "cna@vuldb.com", "type": "Secondary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.4, "source": "cna@vuldb.com", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 2.1, "baseSeverity": "LOW", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "PROOF_OF_CONCEPT", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cna@vuldb.com", "type": "Secondary"}]}, "published": "2026-03-16T14:19:59.700", "references": [{"source": "cna@vuldb.com", "url": "https://github.com/PeterXukt/test_pocs/blob/main/gpac/test.swf"}, {"source": "cna@vuldb.com", "url": "https://github.com/gpac/gpac/"}, {"source": "cna@vuldb.com", "url": "https://github.com/gpac/gpac/commit/8961c74f87ae3fe2d3352e622f7730ca96d50cf1"}, {"source": "cna@vuldb.com", "url": "https://github.com/gpac/gpac/issues/3436"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/?ctiid.351091"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/?id.351091"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/?submit.769840"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-119"}, {"lang": "en", "value": "CWE-121"}], "source": "cna@vuldb.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "2.5-DEV-rev2167-gcc9d617c0-master"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "GPAC", "source": "cna", "vendor": "n/a"}, "product": "gpac", "vendor": "gpac"}], "analysis": {"en": {"generated_at": "2026-03-17T17:16:46.104551+00:00", "value": {"mitigation_remediation": ["Apply the GPAC patch identified by commit 8961c74f87ae3fe2d3352e622f7730ca96d50cf1 or upgrade to a release that includes this fix.", "If an immediate upgrade is not feasible, disable the SWF file parsing functionality in MP4Box or ensure it runs in a restricted sandbox.", "Regularly check the GPAC project repository or vendor advisories for additional updates or acknowledgments of this vulnerability."], "summary": {"action": "Immediate Patch", "impact": "Remote Code Execution"}, "threat_synthesis": {"affected_systems": "The vulnerability affects GPAC versions up to and including 2.5-DEV-rev2167-gcc9d617c0-master. All releases prior to the commit 8961c74f87ae3fe2d3352e622f7730ca96d50cf1 contain the flaw. The affected product is listed in the CPE string cpe:2.3:a:gpac:gpac:*:*:*:*:*:*:*:*, and any deployment that processes SWF files with MP4Box is potentially impacted.", "description_and_impact": "A stack\u2011based buffer overflow exists in the GPAC MP4Box component within the function swf_def_bits_jpeg located in src/scene_manager/swf_parse.c. The overflow is triggered by malicious manipulation of the szName argument supplied when parsing a SWF file, allowing corruption of the call stack. If successfully exploited, the flaw can lead to remote code execution or a denial\u2011of\u2011service condition, and the CVE description confirms that the attack can be launched remotely and that a proof\u2011of\u2011concept exploit is publicly available. The weakness falls under the CWE categories 119 and 121.", "risk_and_exploitability": "The CVSS base score of 5.3 indicates a medium severity, but the EPSS score of less than 1% suggests a low probability of widespread exploitation. The vulnerability is not listed in the CISA KEV catalog. Exploitation requires the ability to feed a crafted SWF file to the vulnerable parser, which can be performed remotely via any interface that accepts SWF input. Attackers who succeed can execute arbitrary code or cause a crash, but the low EPSS indicates that active attacks are currently rare. Awareness of this flaw and monitoring for exploit activity remains advisable."}}}}, "created": "2026-03-16T09:21:27.114533+00:00", "updated": "2026-03-23T14:01:35.987836+00:00", "vendors": ["gpac", "gpac$PRODUCT$gpac"]}