November 13, 2026 Follow Egret
CVE-2023-29300 · CVE record: PUBLISHED

Adobe ColdFusion Deserialization of Untrusted Data Arbitrary code execution

Adobe ColdFusion

Adobe ColdFusion versions 2018u16 (and earlier), 2021u6 (and earlier) and 2023.0.0.330468 (and earlier) are affected by a Deserialization of Untrusted Data vulnerability that could result in Arbitrary code execution. Exploitation of this issue does not require user interaction.

Exploitation evidence

Known exploited · CISA KEV listed

Added 2024-01-08. Ransomware campaign use: Known.

CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

CISA due date: 2024-01-29. This is the catalog’s deadline, not an assessment of your organization’s exposure.

KEV checked 13 Nov 2026, 00:20 Jerusalem · Original catalog ↗

Reported products and versions

Adobe / ColdFusion

Default status: affected

  • affected: 0 to ≤ 2023.0.0.330468 (semver)

Fixes and workarounds

No explicit solution text in the downloaded CVE record. Consult the vendor advisory; unaffected version ranges are shown above as reported, not inferred as a patch recommendation.

Sources and related reporting

CVE Program record ↗ · Download tracked evidence as JSON

Observed change timeline

History begins when Egret first downloads each source. It is not the complete upstream CVE history.

12 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-12",
  "epss": 0.99991,
  "percentile": 0.99985
}
10 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-10",
  "epss": 0.99991,
  "percentile": 0.99985
}
09 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-09",
  "epss": 0.99991,
  "percentile": 0.99985
}
08 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-08",
  "epss": 0.99991,
  "percentile": 0.99985
}
07 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-07",
  "epss": 0.99991,
  "percentile": 0.99985
}
06 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-06",
  "epss": 0.99991,
  "percentile": 0.99985
}
06 Nov 2026, 06:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-05",
  "epss": 0.99991,
  "percentile": 0.99985
}
04 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-04",
  "epss": 0.99991,
  "percentile": 0.99985
}
04 Nov 2026, 18:20 Jerusalem · CVE Program record changed

Stored CNA snapshot at this observation.

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T14:07:44.360Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://helpx.adobe.com/security/products/coldfusion/apsb23-40.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-29300",
                "options": [
                  {
                    "Exploitation": "active"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-01-08T17:03:34.100288Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          },
          {
            "other": {
              "content": {
                "dateAdded": "2024-01-08",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-29300"
              },
              "type": "kev"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-21T23:05:42.860Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "government-resource"
            ],
            "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-29300"
          }
        ],
        "timeline": [
          {
            "lang": "en",
            "time": "2024-01-08T00:00:00.000Z",
            "value": "CVE-2023-29300 added to CISA KEV"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "affected",
          "product": "ColdFusion",
          "vendor": "Adobe",
          "versions": [
            {
              "lessThanOrEqual": "2023.0.0.330468",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "datePublic": "2023-07-11T17:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Adobe ColdFusion versions 2018u16 (and earlier), 2021u6 (and earlier) and 2023.0.0.330468 (and earlier) are affected by a Deserialization of Untrusted Data vulnerability that could result in Arbitrary code execution. Exploitation of this issue does not require user interaction."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "availabilityRequirement": "NOT_DEFINED",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "confidentialityRequirement": "NOT_DEFINED",
            "environmentalScore": 9.8,
            "environmentalSeverity": "CRITICAL",
            "exploitCodeMaturity": "NOT_DEFINED",
            "integrityImpact": "HIGH",
            "integrityRequirement": "NOT_DEFINED",
            "modifiedAttackComplexity": "LOW",
            "modifiedAttackVector": "NETWORK",
            "modifiedAvailabilityImpact": "HIGH",
            "modifiedConfidentialityImpact": "HIGH",
            "modifiedIntegrityImpact": "HIGH",
            "modifiedPrivilegesRequired": "NONE",
            "modifiedScope": "NOT_DEFINED",
            "modifiedUserInteraction": "NONE",
            "privilegesRequired": "NONE",
            "remediationLevel": "NOT_DEFINED",
            "reportConfidence": "NOT_DEFINED",
            "scope": "UNCHANGED",
            "temporalScore": 9.8,
            "temporalSeverity": "CRITICAL",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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": {
        "dateUpdated": "2023-07-12T15:46:08.686Z",
        "orgId": "078d4453-3bcd-4900-85e6-15281da43538",
        "shortName": "adobe"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://helpx.adobe.com/security/products/coldfusion/apsb23-40.html"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Adobe ColdFusion Deserialization of Untrusted Data Arbitrary code execution"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "078d4453-3bcd-4900-85e6-15281da43538",
    "assignerShortName": "adobe",
    "cveId": "CVE-2023-29300",
    "datePublished": "2023-07-12T15:46:08.686Z",
    "dateReserved": "2023-04-04T20:46:42.578Z",
    "dateUpdated": "2025-10-21T23:05:42.860Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}
03 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-03",
  "epss": 0.99991,
  "percentile": 0.99985
}
03 Nov 2026, 02:22 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-02",
  "epss": 0.99991,
  "percentile": 0.99985
}
03 Nov 2026, 02:22 Jerusalem · CISA KEV status changed

Stored KEV snapshot at this observation.

{
  "cveID": "CVE-2023-29300",
  "cwes": [
    "CWE-502"
  ],
  "dateAdded": "2024-01-08",
  "dueDate": "2024-01-29",
  "forensicTriage": "No",
  "knownRansomwareCampaignUse": "Known",
  "notes": "https://helpx.adobe.com/security/products/coldfusion/apsb23-40.html; https://nvd.nist.gov/vuln/detail/CVE-2023-29300",
  "product": "ColdFusion",
  "requiredAction": "Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.",
  "shortDescription": "Adobe ColdFusion contains a deserialization of untrusted data vulnerability that allows for code execution.",
  "vendorProject": "Adobe",
  "vulnerabilityName": "Adobe ColdFusion Deserialization of Untrusted Data Vulnerability"
}
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