Adobe ColdFusion 2025 Unrestricted File Upload Flaw (CVE-2026-105899) Rated CVSS 10
A newly published critical vulnerability in Adobe ColdFusion 2025 carries a CVSS score of 10. Here is what is affected and how to respond.
Key points
- CVE-2026-105899 affects Adobe ColdFusion 2025.
- CVSS 10 (Critical).
- No exploitation confirmed yet.
A critical unrestricted file upload tracked as CVE-2026-105899 has been published in the National Vulnerability Database for Adobe ColdFusion 2025, with a CVSS base score of 10.
At a glance
- CVE
- CVE-2026-105899
- Product
- Adobe ColdFusion 2025
- CVSS
- 10 Critical
- Weakness
- unrestricted file upload
- Exploited
- No known exploitation
What is the vulnerability?
The NVD entry states: ColdFusion is affected by an Unrestricted Upload of File with Dangerous Type vulnerability that could result in arbitrary code execution in the context of the current user. An attacker could exploit this vulnerability to execute arbitrary code. Exploitation of this issue does not require user interaction. Scope is changed.
Affected versions
| Vendor | Product | Versions |
|---|---|---|
| Adobe | ColdFusion 2025 | up to 2025.0.13 |
| Adobe | ColdFusion 2023 | up to 2023.0.25 |
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
Is it being exploited?
There is no public confirmation of exploitation at the time of publication. It does not appear in CISA's Known Exploited Vulnerabilities catalog. We will update this report if that changes.
What should you do?
- Identify whether the affected product and versions run in your environment.
- Apply the vendor update listed in the advisory as soon as it is available.
- Limit network exposure of the affected service until it is patched.
- Monitor the vendor advisory for updated guidance or exploitation reports.
What to do and how to stay safe: CVE-2026-105899
- Vulnerability severity scores ignore your specific architecture and context.
- Exploitability depends on network exposure and user behavior, not just code flaws.
- Prioritization requires continuous asset inventory and threat intelligence alignment.
Risk-based vulnerability management focuses your limited resources on the flaws that actually threaten your business. Start by mapping your critical assets and checking for active exploits to prioritize your backlog.
Step-by-step guide: Risk-Based Vulnerability Management: Prioritize Fixes by Actual Danger
General security guidance from the Threat Times newsroom. It is not confirmed advice from the organisations named in this story.
Frequently asked questions
What is CVE-2026-105899?
CVE-2026-105899 is a unrestricted file upload vulnerability in Adobe ColdFusion 2025.
How severe is CVE-2026-105899?
It has a CVSS score of 10 Critical.
Is CVE-2026-105899 being exploited?
There is no public confirmation of exploitation at the time of publication.
