CVE-2021-47781
BaseFortify
Publication date: 2026-01-15
Last updated on: 2026-01-15
Assigner: VulnCheck
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| cmderdev | cmder | 1.3.18 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-787 | The product writes data past the end, or before the beginning, of the intended buffer. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a buffer overflow in Cmder Console Emulator version 1.3.18. It occurs when a specially crafted .cmd file containing repeated characters is executed, which overwhelms the console emulator's buffer and causes the application to crash or become unresponsive, resulting in a denial of service condition. [2]
How can this vulnerability impact me? :
The vulnerability can impact you by causing a denial of service (DoS) on the Cmder Console Emulator. If a maliciously crafted .cmd file is executed locally, it can crash or freeze the application, disrupting your ability to use the console emulator until it is restarted. [2]
How can this vulnerability be detected on my network or system? Can you suggest some commands?
This vulnerability can be detected by attempting to execute a specially crafted .cmd file that contains a repeated payload designed to overflow Cmder's buffer. For example, creating a .cmd file with a payload consisting of the byte chr(235) concatenated with the string "\\CMDER", repeated 3000 times, and then running this file within Cmder will trigger the buffer overflow and cause the application to crash or become unresponsive. This method acts as a proof-of-concept to detect the vulnerability locally. [2]