Adobe Connect | Deserialization of Untrusted Data (CWE-502)

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  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2026-34659",
    "assignerOrgId": "078d4453-3bcd-4900-85e6-15281da43538",
    "assignerShortName": "adobe",
    "dateUpdated": "2026-05-13T03:58:20.023Z",
    "dateReserved": "2026-03-30T17:30:36.493Z",
    "datePublished": "2026-05-12T18:35:20.208Z",
    "state": "PUBLISHED"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "078d4453-3bcd-4900-85e6-15281da43538",
        "shortName": "adobe",
        "dateUpdated": "2026-05-12T18:35:20.208Z"
      },
      "datePublic": "2026-05-12T17:00:00.000Z",
      "title": "Adobe Connect | Deserialization of Untrusted Data (CWE-502)",
      "descriptions": [
        {
          "lang": "en",
          "value": "Adobe Connect versions 2025.9.15, 2025.8.157 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. An attacker could exploit this vulnerability to execute arbitrary code. 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."
        }
      ],
      "affected": [
        {
          "vendor": "Adobe",
          "product": "Adobe Connect",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "2025.8.157"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "Deserialization of Untrusted Data (CWE-502)",
              "cweId": "CWE-502",
              "type": "CWE"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://helpx.adobe.com/security/products/connect/apsb26-50.html",
          "tags": [
            "vendor-advisory"
          ]
        }
      ],
      "metrics": [
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          "format": "CVSS",
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              "lang": "en",
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            "version": "3.1",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
            "attackVector": "NETWORK",
            "attackComplexity": "LOW",
            "privilegesRequired": "NONE",
            "userInteraction": "REQUIRED",
            "scope": "CHANGED",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "availabilityImpact": "HIGH",
            "baseScore": 9.6,
            "baseSeverity": "CRITICAL",
            "exploitCodeMaturity": "NOT_DEFINED",
            "remediationLevel": "NOT_DEFINED",
            "reportConfidence": "NOT_DEFINED",
            "temporalScore": 9.6,
            "temporalSeverity": "CRITICAL",
            "confidentialityRequirement": "NOT_DEFINED",
            "integrityRequirement": "NOT_DEFINED",
            "availabilityRequirement": "NOT_DEFINED",
            "modifiedAttackVector": "NETWORK",
            "modifiedAttackComplexity": "LOW",
            "modifiedPrivilegesRequired": "NONE",
            "modifiedUserInteraction": "REQUIRED",
            "modifiedScope": "CHANGED",
            "modifiedConfidentialityImpact": "HIGH",
            "modifiedIntegrityImpact": "HIGH",
            "modifiedAvailabilityImpact": "HIGH",
            "environmentalScore": 9.7,
            "environmentalSeverity": "CRITICAL"
          }
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    },
    "adp": [
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        "providerMetadata": {
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP",
          "dateUpdated": "2026-05-13T03:58:20.023Z"
        },
        "title": "CISA ADP Vulnrichment",
        "metrics": [
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