SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2023-26360

Adobe ColdFusion Deserialization of Untrusted Data Vulnerability

KEVHIGH 8.6EPSS 97.3%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 5 April 2023). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

Adobe ColdFusion versions 2018 Update 15 (and earlier) and 2021 Update 5 (and earlier) are affected by an Improper Access Control vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue does not require user interaction.

CVSS 3.1
8.6 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
EPSS
97.34% probability · 100th percentile
Public exploits
None in Exploit-DB
CISA KEV
Listed 15 March 2023 · due 5 April 2023
Weakness
CWE-284
Affected
adobe/coldfusion
Source
psirt@adobe.com
EPSS trend
0%50%100%7 October 2026: 97.34%7 October 20267 October 2026

EPSS 97.3% since 7 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

CISA notes

Apply updates per vendor instructions. https://helpx.adobe.com/security/products/coldfusion/apsb23-25.html; https://nvd.nist.gov/vuln/detail/CVE-2023-26360

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.