Description

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.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "8.1",
  "pubDate": "2026-08-11T17:18:01.330Z",
  "pubdate": "2026-08-11T17:18:01.330Z",
  "executiveSummary": "Adobe ColdFusion is affected by a heap-based buffer overflow vulnerability that poses significant risks to system security.\nThis vulnerability allows an unauthenticated attacker to execute arbitrary code within the security context of the currently logged-in user.\nThe flaw stems from improper memory management within the affected software, enabling memory corruption conditions during execution.\nSuccessful exploitation of this issue does not require any user interaction, making it particularly dangerous for automated propagation and remote exploitation.\nHowever, the success of the exploit depends heavily on specific runtime conditions that are currently beyond the direct control of the attacker.\nIf conditions are met, the impact includes complete system compromise, unauthorized access to sensitive data, and potential lateral movement across the network.\nOrganizations utilizing vulnerable versions of ColdFusion must prioritize risk assessment and implement defensive controls to mitigate potential exploitation.",
  "technicalDetails": "The vulnerability is classified as a heap-based buffer overflow, occurring when a program allocates dynamic memory on the heap and writes data exceeding the allocated buffer size.\nThe root cause involves insufficient bounds checking on input data processed by the vulnerable component within ColdFusion, leading to adjacent memory corruption.\nAttackers can deliver a specially crafted payload designed to overwrite critical heap metadata or function pointers, redirecting the execution flow to malicious shellcode.\nThe attack flow begins with the delivery of the malicious payload to the vulnerable ColdFusion endpoint over the network.\nUpon processing the malformed input, the application writes data past the boundaries of the heap buffer, corrupting adjacent heap chunks.\nWhen the application attempts to utilize the corrupted memory structures or execute hijacked pointers, arbitrary code execution is triggered in the context of the current user.\nThe vulnerability can be exploited remotely without requiring prior authentication or user interaction.\nPrivilege requirements depend on the execution context of the ColdFusion service, but often run with elevated privileges depending on the initial installation configuration.\nPost-exploitation impact includes full control over the affected ColdFusion instance, enabling the attacker to read, modify, or delete sensitive files, establish persistence, and pivot to other internal network resources."
}