CVE-1999-0193: Denial of service in Ascend and 3com routers, which can be rebooted by sending a zero length TCP option.

Published n/a Updated 2026-08-21T04:30:39.586Z

Summary

Denial of service in Ascend and 3com routers, which can be rebooted by sending a zero length TCP option.

Severity

UNKNOWN

Source Attribution

Source: NVD · Updated: 2026-08-21T04:30:39.586Z · Confidence: high

Impact

Based on CVSS vector: n/a — assess confidentiality, integrity, and availability impact via the official vector documentation.

Affected Software

Fix

Upgrade affected software to the fixed version identified above. Apply vendor patches and monitor advisories before exposed systems go unpatched.

References