Livingston Portmaster routers running ComOS use the same initial sequence...

7.5 CVSS

Vulnerability Description

Livingston Portmaster routers running ComOS use the same initial sequence number (ISN) for TCP connections, which allows remote attackers to conduct spoofing and hijack TCP sessions.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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CVE-1999-0218

Livingston portmaster machines could be rebooted via a series of...

Medium 5

Affected Vendor

livingston portmaster

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Affected Software

portmaster

Vulnerable Versions:

initial

Timeline

Official Publish: September 12th, 2001

Last Modified: August 1st, 2024

Added to House: July 17th, 2026

CVSS Vectors

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.