How severe is CVE-1999-1159?

CVE-1999-1159 has a CVSS 2.0 base score of 4.6, rated medium severity.

Is CVE-1999-1159 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-1999-1159?

CVE-1999-1159 affects Ssh Ssh2. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-1999-1159?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-1999-1159 published?

CVE-1999-1159 was published on 1998-12-29 and last updated on 2026-06-16.

CVE-1999-1159

CVE-1999-1159 is a medium-severity vulnerability in Ssh Ssh2 with a CVSS 2.0 base score of 4.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 4.6)
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Ssh Ssh2
Published: 1998-12-29
Last modified: 2026-06-16

Description

SSH 2.0.11 and earlier allows local users to request remote forwarding from privileged ports without being root.

Frequently asked questions

What is CVE-1999-1159?: SSH 2.0.11 and earlier allows local users to request remote forwarding from privileged ports without being root.
How severe is CVE-1999-1159?: CVE-1999-1159 has a CVSS 2.0 base score of 4.6, rated medium severity.
Is CVE-1999-1159 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-1159?: CVE-1999-1159 affects Ssh Ssh2. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-1999-1159?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-1999-1159 published?: CVE-1999-1159 was published on 1998-12-29 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:ssh:ssh2:2.0.11:*:*:*:*:*:*:*

More vulnerabilities in Ssh Ssh2

CVE-2002-1645 — Critical (CVSS 10.0): Buffer overflow in the URL catcher feature for SSH Secure Shell for Workstations client 3.1 to 3.2.0 allows remote…
CVE-1999-1029 — High (CVSS 7.5): SSH server (sshd2) before 2.0.12 does not properly record login attempts if the connection is closed before the maximum…
CVE-2002-1715 — High (CVSS 7.2): SSH 1 through 3, and possibly other versions, allows local users to bypass restricted shells such as rbash or rksh by…
CVE-2002-1644 — High (CVSS 7.2): SSH Secure Shell for Servers and SSH Secure Shell for Workstations 2.0.13 through 3.2.1, when running without a PTY,…
CVE-2000-0217 — Medium (CVSS 5.1): The default configuration of SSH allows X forwarding, which could allow a remote attacker to control a client's X…
CVE-2001-0364 — Medium (CVSS 5.0): SSH Communications Security sshd 2.4 for Windows allows remote attackers to create a denial of service via a large…

All CVEs affecting Ssh Ssh2 →