Deserialization in Adobe Coldfusion

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 i…

Vulnerability class: Insecure Deserialization

EPSS: 0.938 (99.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: .

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

Known ransomware campaign use: yes.

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-29300?
CVE-2023-29300 is a critical-severity vulnerability in Adobe Coldfusion, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2023-07-12.
How severe is CVE-2023-29300?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2023-29300 known to be exploited?
Yes. CVE-2023-29300 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2024-01-08), indicating it is being actively exploited. 16 public proof-of-concept repositories are indexed.