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ExploitedIn CISA KEV

CVE-2023-29300

Exploitation confirmed. First attested on 2023-10-14 by CISA-ADP, CISA KEV, GCVE · kevintel, GCVE · shadowserver.

  • Published2023-07-12
  • WeaknessCWE-502

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2023-07-1216:15CVE publishedNVD
  2. 2023-10-1414:57Listed as exploited by GCVEGCVE
  3. 2023-10-1414:57Exploitation first reportedGCVE
  4. 2024-01-08Added to the CISA KEV catalogCISA KEV
  5. 2024-01-0817:03SSVC exploitation set to activeCISA-ADP

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-29300?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-29300?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Adobe coldfusion
BranchAffectedFixed in
2018.x= 2018no fix published
2021.x= 2021no fix published
2023.x= 2023no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As adobe, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Adobe ColdFusionother versions: affected
    Affected
    • ≤ 2023.0.0.330468no fix statedsemver

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2023-07-12

Fix

  1. CISA’s required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.due 2024-01-29

Advisories and patches

Detection

read 2026-11-02 22:42 UTC
Nuclei template
available
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

CISA Known Exploited Vulnerability

Date Added
2024-01-08
Patch Due Date
2024-01-29
Ransomware Use
Known
Required Action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2023-07-12
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-4c7h-552f-7g3h

Frequently asked questions

What is CVE-2023-29300?

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.

Is CVE-2023-29300 actively exploited?

Yes. CVE-2023-29300 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2024-01-29.

What is the CVSS score for CVE-2023-29300?

CVE-2023-29300 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record