Adobe patches 32 ColdFusion vulnerabilities
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Adobe fixed over 30 ColdFusion flaws, including several CVSS 10.0 bugs enabling unauthenticated RCE, file read, and SSRF; no active exploitation reported.
NCSC-NL published an advisory summarizing Adobe's patches for a large batch of ColdFusion vulnerabilities spanning path traversal, code injection, unrestricted file upload, XML external entity (XXE) injection, incorrect authorization, and server-side request forgery (SSRF). Several of the flaws carry maximum CVSS v3 scores of 10.0 (CVE-2026-105899, CVE-2026-106622, CVE-2026-106624) and others score above 9.0, indicating that many can be exploited without user interaction to achieve privilege escalation, arbitrary code execution, unrestricted file upload, access to internal network resources, sensitive memory disclosure, or denial of service.
Of particular note is a path traversal vulnerability in the Remote Development Services (RDS) component that allows an attacker to read arbitrary files without user interaction; RDS is disabled by default under the Production Secure Profile, which limits exposure for hardened deployments. The SSRF vulnerabilities could allow attackers to bypass network segmentation and reach internal systems that would otherwise be unreachable from the internet-facing ColdFusion server.
No in-the-wild exploitation is mentioned in the advisory. Defenders running Adobe ColdFusion should apply the vendor's updates referenced in the advisory as a priority given the number of critical-severity issues, verify that RDS and other optional services are disabled where not required, and review network segmentation controls around ColdFusion instances to limit the impact of any SSRF-related compromise.
Mentioned in this report
Detection guidance
Adobe ColdFusion Server Spawning Shell or Download Utility
ColdFusion process spawning a command interpreter or LOLBin, typical post-exploitation after ColdFusion code injection, file upload or RCE exploitation. Auto-generated starting point — validate and tune in your environment before deploying. IOC matches can false-positive on shared infrastructure and decay as adversary infrastructure rotates.
title: Adobe ColdFusion Server Spawning Shell or Download Utility
description: Detects the ColdFusion server process (coldfusion.exe) spawning command
interpreters or common living-off-the-land utilities. This is typical post-exploitation
behaviour after code injection or unrestricted file upload flaws in ColdFusion.
tags:
- attack.initial-access
- attack.execution
- attack.t1190
- attack.t1059
logsource:
category: process_creation
product: windows
detection:
selection:
ParentImage|endswith: \coldfusion.exe
Image|endswith:
- \cmd.exe
- \powershell.exe
- \pwsh.exe
- \certutil.exe
- \bitsadmin.exe
- \mshta.exe
- \wscript.exe
- \cscript.exe
- \whoami.exe
- \net.exe
- \net1.exe
- \curl.exe
condition: selection
falsepositives:
- ColdFusion applications that intentionally use cfexecute to run batch files or scripts
- Administrative maintenance scripts launched by the ColdFusion service
level: high
id: 9e97d227-a16b-5ad1-ab73-c724cfaf5b44
status: experimental
author: Vorant
references:
- https://advisories.ncsc.nl/2026/ncsc-2026-0435.html
Adobe ColdFusion RDS Endpoint Request With Path Traversal
Web request to the ColdFusion RDS IDE endpoint containing directory traversal sequences, consistent with arbitrary file read attempts. Auto-generated starting point — validate and tune in your environment before deploying. IOC matches can false-positive on shared infrastructure and decay as adversary infrastructure rotates.
title: Adobe ColdFusion RDS Endpoint Request With Path Traversal
description: Detects requests to the ColdFusion Remote Development Services endpoint
(/CFIDE/main/ide.cfm) that contain directory traversal sequences in the query string,
consistent with attempts to read arbitrary files via an RDS path traversal flaw.
tags:
- attack.initial-access
- attack.t1190
logsource:
category: webserver
detection:
selection_uri:
cs-uri-stem|contains: /CFIDE/main/ide.cfm
selection_traversal:
cs-uri-query|contains:
- ../
- ..\
- ..%2f
- '%2e%2e'
- ..%5c
condition: selection_uri and selection_traversal
falsepositives:
- Legitimate RDS use from Dreamweaver or ColdFusion Builder with relative paths on
development servers
level: medium
id: e692aebb-d054-54a5-8f80-2bd342a827c8
status: experimental
author: Vorant
references:
- https://advisories.ncsc.nl/2026/ncsc-2026-0435.html
Behavioural rules are generated from public reporting — validate in your environment before deploying.
Source reporting: https://advisories.ncsc.nl/2026/ncsc-2026-0435.html
What this brief leaves out
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