CVE-2026-48440 is a vulnerability in Adobe ColdFusion
Published on August 11, 2026
ColdFusion | Heap-based Buffer Overflow (CWE-122)
ColdFusion is affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploit depends on conditions beyond the attacker's control. Exploitation of this issue does not require user interaction.
Vulnerability Analysis
CVE-2026-48440 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
Heap-based Buffer Overflow
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
Products Associated with CVE-2026-48440
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Affected Versions
Adobe ColdFusion 2025:- Before and including 2025.0.11 is affected.
- Version 2025.0.12 is unaffected.
- Before and including 2023.0.22 is affected.
- Version 2023.0.23 is unaffected.