Vulnerability · Published Jan 15, 2026 · Assigned by VulnCheck
CVE-2021-47781Cmder Console Emulator 1.3.18 - 'Cmder.exe' Denial of Service (PoC)
Critical 9.8
In plain English
A critical-severity out-of-bounds write in Cmder Console Emulator from Cmder. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.3%top 78.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Cmder | Cmder Console Emulator | 1.3.18 |
Weakness: CWE-787 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- ExploitDB-50401 exploit
- Cmder GitHub Repository product