CVE-1999-0359

CVE-1999-0359 is a high-severity vulnerability in Marc Schaefer Ptylogin with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

ptylogin in Unix systems allows users to perform a denial of service by locking out modems, dial out with that modem, or obtain passwords.

Frequently asked questions

What is CVE-1999-0359?
ptylogin in Unix systems allows users to perform a denial of service by locking out modems, dial out with that modem, or obtain passwords.
How severe is CVE-1999-0359?
CVE-1999-0359 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-1999-0359 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-0359?
CVE-1999-0359 affects Marc Schaefer Ptylogin. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-1999-0359?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-1999-0359 published?
CVE-1999-0359 was published on 2001-03-12 and last updated on 2026-06-16.

References

Affected products (1)