What’s Vulnerable › Vulnerabilities

CVE-1999-1559

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 1999-03-31 · updated 2026-06-16

Description

Xylan OmniSwitch before 3.2.6 allows remote attackers to bypass the login prompt via a CTRL-D (control d) character, which locks other users out of the switch because it only supports one session at a time.

Affected products

• Alcatel Omniswitch: through 3.2.4

References

• http://marc.info/?l=bugtraq&m=92299263017061&w=2
• https://exchange.xforce.ibmcloud.com/vulnerabilities/2064
• http://marc.info/?l=bugtraq&m=92299263017061&w=2
• https://exchange.xforce.ibmcloud.com/vulnerabilities/2064

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