What’s Vulnerable › Vulnerabilities

CVE-1999-1257

• Severity: high (CVSS 7.5 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 1997-11-26 · updated 2026-06-16

Description

Xyplex terminal server 6.0.1S1, and possibly other versions, allows remote attackers to bypass the password prompt by entering (1) a CTRL-Z character, or (2) a ? (question mark).

Affected products

• Xyplex Maxserver Xyplex Terminal Server: through 6.0.2_s4; 6.0.1_s1

References

• http://www.securityfocus.com/archive/1/8134
• https://exchange.xforce.ibmcloud.com/vulnerabilities/1825
• https://exchange.xforce.ibmcloud.com/vulnerabilities/1826
• http://www.securityfocus.com/archive/1/8134
• https://exchange.xforce.ibmcloud.com/vulnerabilities/1825
• https://exchange.xforce.ibmcloud.com/vulnerabilities/1826

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