CVE-2023-29300 (GCVE-0-2023-29300)

Vulnerability from cvelistv5 – Published: 2023-07-12 15:46 – Updated: 2025-10-21 23:05
VLAI CISA Shadowserver KEVIntel
Title
Adobe ColdFusion Deserialization of Untrusted Data Arbitrary code execution
Summary
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.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: active Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data (CWE-502)
Assigner
References
Impacted products
Vendor Product Version
Adobe ColdFusion Affected: 0 , ≤ 2023.0.0.330468 (semver)
Create a notification for this product.
Date Public
2023-07-11 17:00
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 203de08b-f2b6-439d-a005-5e2f6bb4f46a

Vulnerability ID: CVE-2023-29300

Status: Confirmed

Status Updated: 2024-01-08 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2024-01-08
Asserted: 2024-01-08
Scope
Notes: KEV entry: Adobe ColdFusion Deserialization of Untrusted Data Vulnerability | Affected: Adobe / ColdFusion | Description: Adobe ColdFusion contains a deserialization of untrusted data vulnerability that allows for code execution. | Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. | Due date: 2024-01-29 | Known ransomware campaign use (KEV): Known | Notes (KEV): https://helpx.adobe.com/security/products/coldfusion/apsb23-40.html; https://nvd.nist.gov/vuln/detail/CVE-2023-29300
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-502
Feed CISA Known Exploited Vulnerabilities Catalog
Product ColdFusion
Due Date 2024-01-29
Date Added 2024-01-08
Vendorproject Adobe
Vulnerabilityname Adobe ColdFusion Deserialization of Untrusted Data Vulnerability
Knownransomwarecampaignuse Known
References
Created: 2026-02-02 12:26 UTC | Updated: 2026-02-06 07:17 UTC
Shadowserver
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: c0e21c9a-e132-4ddb-9f13-6bb599adc226

Vulnerability ID: CVE-2023-29300

Status: Confirmed

Status Updated: 2026-07-08 00:00 UTC

Exploited: Yes

Characteristics
Severity: 98.0
Timestamps
First Seen: 2023-10-14
Asserted: 2023-10-14
Last Seen: 2026-07-08
Scope
Asset Exposure: ['internet-facing']
Notes: Affected: Adobe / ColdFusion | Class: app-server | Severity: Critical (CVSS 9.8) | IoT: no | In CISA KEV: yes | Honeypot connections on 2026-07-08: 1
Evidence

Type: Honeypot

Signal: In The Wild Attempts

Confidence: 70%

Source: shadowserver

Details
1D 1
Iot no
Feed Shadowserver Foundation honeypot/exploited-vulnerabilities
Type http-scan
Class app-server
7D Avg 0
Vendor Adobe
30D Avg 3
90D Avg 2
Product ColdFusion
Cisa Kev yes
Connections 1
Observation Date 2026-07-08
Vulnerability Class CVSS
Vulnerability Score 9.8
Vulnerability Severity Critical
References
Created: 2026-06-30 09:23 UTC | Updated: 2026-07-10 01:02 UTC
KEVIntel
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 160c5473-2bc0-4ed3-94bf-f4cd0d608618

Vulnerability ID: CVE-2023-29300

Status: Confirmed

Status Updated: 2024-01-08 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2024-01-08
Asserted: 2024-01-08
Scope
Notes: KEVIntel entry: Adobe ColdFusion Deserialization of Untrusted Data Arbitrary code execution | Affected: Adobe / ColdFusion | CVSS: 9.8 (CRITICAL) | Used in malware: yes | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Confirmed Compromise

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title Adobe ColdFusion Deserialization of Untrusted Data Arbitrary code execution
Vendor Adobe
Product ColdFusion
Added Date 2024-01-08T00:00:00.000Z
Cvss Score 9.8
Epss Score None
Cvss Severity CRITICAL
Epss Percentile None
Used In Malware yes
Ahead Of Cisa Kev None
Not Yet In Cisa Kev False
References
Created: 2026-06-23 14:05 UTC | Updated: 2026-07-10 06:14 UTC
Show details on NVD website
To clipboard 

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    "redhat_vex": {
      "current_release_date": "2026-03-27T11:41:17+00:00",
      "cve": "CVE-2023-29300",
      "id": "CVE-2023-29300",
      "initial_release_date": "2023-07-11T17:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Adobe ColdFusion Deserialization of Untrusted Data Arbitrary code execution",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-29300.json",
      "version": "3"
    },
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      "cveMetadata": "{\"cveId\": \"CVE-2023-29300\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-21T23:05:42.860Z\", \"dateReserved\": \"2023-04-04T20:46:42.578Z\", \"assignerOrgId\": \"078d4453-3bcd-4900-85e6-15281da43538\", \"datePublished\": \"2023-07-12T15:46:08.686Z\", \"assignerShortName\": \"adobe\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.