CVE-2026-27303

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-27303", "assignerOrgId": "078d4453-3bcd-4900-85e6-15281da43538", "state": "PUBLISHED", "assignerShortName": "adobe", "dateReserved": "2026-02-18T22:02:41.399Z", "datePublished": "2026-04-14T17:33:50.425Z", "dateUpdated": "2026-08-27T22:15:40.822Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Adobe Connect", "vendor": "Adobe", "versions": [{"lessThanOrEqual": "12.10", "status": "affected", "version": "0", "versionType": "semver"}, {"status": "unaffected", "version": "12.11", "versionType": "semver"}]}, {"defaultStatus": "unaffected", "product": "Adobe Connect Desktop Application", "vendor": "Adobe", "versions": [{"lessThanOrEqual": "2025.3", "status": "affected", "version": "0", "versionType": "custom"}, {"status": "unaffected", "version": "2025.9", "versionType": "custom"}]}], "datePublic": "2026-04-14T17:00:00.000Z", "descriptions": [{"lang": "en", "value": "Adobe Connect versions 2025.3, 12.10 and earlier are affected by a Deserialization of Untrusted Data vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must visit a maliciously crafted URL or interact with a compromised web page. Scope is changed."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "baseScore": 9.6, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "environmentalScore": 9.7, "environmentalSeverity": "CRITICAL", "exploitCodeMaturity": "NOT_DEFINED", "integrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "LOW", "modifiedAttackVector": "NETWORK", "modifiedAvailabilityImpact": "HIGH", "modifiedConfidentialityImpact": "HIGH", "modifiedIntegrityImpact": "HIGH", "modifiedPrivilegesRequired": "NONE", "modifiedScope": "CHANGED", "modifiedUserInteraction": "REQUIRED", "privilegesRequired": "NONE", "remediationLevel": "NOT_DEFINED", "reportConfidence": "NOT_DEFINED", "scope": "CHANGED", "temporalScore": 9.6, "temporalSeverity": "CRITICAL", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-502", "description": "Deserialization of Untrusted Data (CWE-502)", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "078d4453-3bcd-4900-85e6-15281da43538", "shortName": "adobe", "dateUpdated": "2026-08-27T22:15:40.822Z"}, "references": [{"tags": ["vendor-advisory"], "url": "https://helpx.adobe.com/security/products/connect/apsb26-37.html"}], "source": {"discovery": "EXTERNAL"}, "title": "Adobe Connect | Deserialization of Untrusted Data (CWE-502)", "x_generator": {"engine": "cvelib 1.8.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-04-14T00:00:00+00:00", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2026-27303"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-15T03:58:42.787Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-27303", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-04-14T18:22:20.838919Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-14T18:22:25.367Z"}}], "cna": {"title": "Adobe Connect | Deserialization of Untrusted Data (CWE-502)", "source": {"discovery": "EXTERNAL"}, "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 9.6, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "modifiedScope": "CHANGED", "temporalScore": 9.6, "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "remediationLevel": "NOT_DEFINED", "reportConfidence": "NOT_DEFINED", "temporalSeverity": "CRITICAL", "availabilityImpact": "HIGH", "environmentalScore": 9.7, "privilegesRequired": "NONE", "exploitCodeMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NETWORK", "confidentialityImpact": "HIGH", "environmentalSeverity": "CRITICAL", "availabilityRequirement": "NOT_DEFINED", "modifiedIntegrityImpact": "HIGH", "modifiedUserInteraction": "REQUIRED", "modifiedAttackComplexity": "LOW", "confidentialityRequirement": "NOT_DEFINED", "modifiedAvailabilityImpact": "HIGH", "modifiedPrivilegesRequired": "NONE", "modifiedConfidentialityImpact": "HIGH"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Adobe", "product": "Adobe Connect", "versions": [{"status": "affected", "version": "0", "versionType": "semver", "lessThanOrEqual": "12.10"}, {"status": "unaffected", "version": "12.11", "versionType": "semver"}], "defaultStatus": "unaffected"}, {"vendor": "Adobe", "product": "Adobe Connect Desktop Application", "versions": [{"status": "affected", "version": "0", "versionType": "custom", "lessThanOrEqual": "2025.3"}, {"status": "unaffected", "version": "2025.9", "versionType": "custom"}], "defaultStatus": "unaffected"}], "datePublic": "2026-04-14T17:00:00.000Z", "references": [{"url": "https://helpx.adobe.com/security/products/connect/apsb26-37.html", "tags": ["vendor-advisory"]}], "x_generator": {"engine": "cvelib 1.8.0"}, "descriptions": [{"lang": "en", "value": "Adobe Connect versions 2025.3, 12.10 and earlier are affected by a Deserialization of Untrusted Data vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must visit a maliciously crafted URL or interact with a compromised web page. Scope is changed."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-502", "description": "Deserialization of Untrusted Data (CWE-502)"}]}], "providerMetadata": {"orgId": "078d4453-3bcd-4900-85e6-15281da43538", "shortName": "adobe", "dateUpdated": "2026-08-27T22:15:40.822Z"}}}, "cveMetadata": {"cveId": "CVE-2026-27303", "state": "PUBLISHED", "dateUpdated": "2026-08-27T22:15:40.822Z", "dateReserved": "2026-02-18T22:02:41.399Z", "assignerOrgId": "078d4453-3bcd-4900-85e6-15281da43538", "datePublished": "2026-04-14T17:33:50.425Z", "assignerShortName": "adobe"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Adobe Connect", "vendor": "Adobe", "versions": [{"lessThanOrEqual": "12.10", "status": "affected", "version": "0", "versionType": "semver"}, {"status": "unaffected", "version": "12.11", "versionType": "semver"}]}, {"defaultStatus": "unaffected", "product": "Adobe Connect Desktop Application", "vendor": "Adobe", "versions": [{"lessThanOrEqual": "2025.3", "status": "affected", "version": "0", "versionType": "custom"}, {"status": "unaffected", "version": "2025.9", "versionType": "custom"}]}], "source": "psirt@adobe.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:adobe:connect:*:*:*:*:*:-:*:*", "matchCriteriaId": "4A1D88E9-612C-49B1-8521-F2258D4D74CA", "versionEndExcluding": "12.11", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*", "matchCriteriaId": "387021A0-AF36-463C-A605-32EA7DAC172E", "vulnerable": false}, {"criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*", "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:adobe:connect_desktop_application:*:*:*:*:*:macos:*:*", "matchCriteriaId": "185BF6E9-82FC-45E0-A64E-03FB923F34AD", "versionEndIncluding": "2025.3", "vulnerable": true}, {"criteria": "cpe:2.3:a:adobe:connect_desktop_application:*:*:*:*:*:windows:*:*", "matchCriteriaId": "783AAAA9-E68B-43E3-86A3-5227E27392A5", "versionEndExcluding": "2025.9.15", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Adobe Connect versions 2025.3, 12.10 and earlier are affected by a Deserialization of Untrusted Data vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must visit a maliciously crafted URL or interact with a compromised web page. Scope is changed."}, {"lang": "es", "value": "Las versiones 2025.3, 12.10 y anteriores de Adobe Connect est\u00e1n afectadas por una vulnerabilidad de deserializaci\u00f3n de datos no confiables que podr\u00eda resultar en ejecuci\u00f3n de c\u00f3digo arbitrario en el contexto del usuario actual. La explotaci\u00f3n de este problema no requiere interacci\u00f3n del usuario. El alcance se modifica."}], "id": "CVE-2026-27303", "lastModified": "2026-10-26T21:10:00.170", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.6, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 6.0, "source": "psirt@adobe.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.6, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 6.0, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-27303", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-04-14T00:00:00+00:00", "version": "2.0.3"}}]}, "published": "2026-04-14T18:16:56.633", "references": [{"source": "psirt@adobe.com", "tags": ["Vendor Advisory"], "url": "https://helpx.adobe.com/security/products/connect/apsb26-37.html"}], "sourceIdentifier": "psirt@adobe.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-502"}], "source": "psirt@adobe.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,12.10]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "product": "adobe_connect", "vendor": "adobe"}], "created": "2026-04-15T14:54:00.552264+00:00", "updated": "2026-10-25T17:45:15.654759+00:00", "vendors": ["adobe", "adobe$PRODUCT$adobe_connect"]}