CVE-2021-47781
CRITICAL
Out-of-bounds Write (CWE-787)
2026-01-15
disclosure@vulncheck.com
9.8
CVSS 3.1 · NVD
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Severity by source
NVD
PRIMARY
9.8
CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
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
Lifecycle Timeline
3
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
PoC Detected
Jan 16, 2026 - 15:55 vuln.today
Public exploit code
CVE Published
Jan 15, 2026 - 16:16 nvd
CRITICAL 9.8
DescriptionCVE.org
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.
AnalysisAI
Cmder Console Emulator 1.3.18 can be crashed via a malicious .cmd file with repeated characters, causing buffer overflow and DoS. PoC available.
Technical ContextAI
Repeated characters in .cmd files overflow the console buffer (CWE-787).
Affected ProductsAI
Cmder 1.3.18
RemediationAI
Update Cmder.
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External POC / Exploit Code
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