CVE-2001-1056
IRC DCC helper in the ip_masq_irc IP masquerading module 2.2 allows remote attackers to bypass...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2001-1056- CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2001-1056- Updated
- 2026-11-02
EUVDEUVD-2001-1037 No score
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.
- Record
EUVD-2001-1037- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-jqp9-rhpg-wv3f No score
IRC DCC helper in the ip_masq_irc IP masquerading module 2.2 allows remote attackers to bypass...
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.
- Record
GHSA-jqp9-rhpg-wv3f- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2001-1056 is a high vulnerability (CVSS 7.5) in Linux Kernel, published July 30, 2001. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.44%, the 84th percentile. No source names a fixed version.