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CVE-1999-1257

Xyplex terminal server 6.0.1S1, and possibly other versions, allows remote attackers to bypass...

7.5 High

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).

Exploit likelihood

1.58%Up 0.4 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 7.5

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).

Record
CVE-1999-1257
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Updated
2026-11-02
CVE List No score

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).

Record
CVE-1999-1257
Updated
2026-11-02
EUVDEUVD-1999-1238 No score

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).

Record
EUVD-1999-1238
Updated
2026-11-03
GitHub AdvisoriesGHSA-x5qw-j8m6-38mj No score

Xyplex terminal server 6.0.1S1, and possibly other versions, allows remote attackers to bypass...

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).

Record
GHSA-x5qw-j8m6-38mj
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-1999-1257 is a high vulnerability (CVSS 7.5) in Xyplex Maxserver Xyplex Terminal Server, published November 26, 1997. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.58%, the 75th percentile. No source names a fixed version.

References

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