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Case File

CVE-2001-1056

HIGH · CVSS 7.5 EPSS 2.44%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2001-07-30 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. It may be remotely exploitable.

CVE
CVE-2001-1056
Severity
HIGH
CVSS
7.5
EPSS
2.44%

Original NVD Description

IRC DCC helper in the ip_masq_irc IP masquerading module 2.2 allows remote attackers to bypass intended firewall restrictions by causing the target system to send a "DCC SEND" request to a malicious server which listens on port 6667, which may cause the module to believe that the traffic is a valid request and allow the connection to the port specified in the DCC SEND request.