CVE-2020-37155

Core FTP Lite 1.3 - Denial of Service (PoC)

Published Feb 6, 2026 CVSS 4.0 · 6.7 Medium EPSS < 1% KEV · Not listed
Description
Core FTP Lite 1.3 contains a buffer overflow vulnerability in the username input field that allows attackers to crash the application by supplying oversized input. Attackers can generate a 7000-byte payload of repeated 'A' characters to trigger an application crash without requiring additional interaction.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Coreftp
Coreftp core Ftp
CPEs cpe:2.3:a:coreftp:core_ftp:1.3c:*:*:*:*:*:*:*
Vendors & Products Coreftp
Coreftp core Ftp
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Core Ftp
Core Ftp core Ftp Lite
Vendors & Products Core Ftp
Core Ftp core Ftp Lite
Type Values Removed Values Added
Description Core FTP Lite 1.3 contains a buffer overflow vulnerability in the username input field that allows attackers to crash the application by supplying oversized input. Attackers can generate a 7000-byte payload of repeated 'A' characters to trigger an application crash without requiring additional interaction.
Title Core FTP Lite 1.3 - Denial of Service (PoC)
Weaknesses CWE-120
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 6.7, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Oct 1, 2026, 3:19 PM
Reserved
Feb 3, 2026, 4:27 PM
Status
Deferred
Published
Feb 7, 2026, 12:15 AM
Modified
Jun 17, 2026, 3:17 AM