CVE-2021-47781

CRITICAL 9.8

Cmder Console Emulator 1.3.18 - 'Cmder.exe' Denial of Service (PoC)

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

Cmder Console Emulator 1.3.18 contains a buffer overflow vulnerability that allows attackers to trigger a denial of service condition through a maliciously crafted .cmd file. Attackers can create a specially constructed .cmd file with repeated characters to overwhelm the console emulator's buffer and crash the application.

CWE	CWE-787
Vendor	cmder
Product	cmder console emulator
Published	Jan 15, 2026
Last Updated	Aug 14, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

Cmder / Cmder Console Emulator

1.3.18

References

NVD ↗ CVE.org ↗ EPSS Data ↗

exploit-db.com: https://www.exploit-db.com/exploits/50401 github.com: https://github.com/cmderdev/cmder

Credits

Aryan Chehreghani