How severe is CVE-1999-1010?

CVE-1999-1010 has a CVSS 2.0 base score of 2.1, rated low severity.

Is CVE-1999-1010 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-1999-1010?

CVE-1999-1010 affects Openbsd Openssh. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-1999-1010?

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

When was CVE-1999-1010 published?

CVE-1999-1010 was published on 1999-12-14 and last updated on 2026-06-16.

CVE-1999-1010

CVE-1999-1010 is a low-severity vulnerability in Openbsd Openssh with a CVSS 2.0 base score of 2.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Low (CVSS 2.0 base score 2.1)
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Openbsd Openssh
Published: 1999-12-14
Last modified: 2026-06-16

Description

An SSH 1.2.27 server allows a client to use the "none" cipher, even if it is not allowed by the server policy.

Frequently asked questions

What is CVE-1999-1010?: An SSH 1.2.27 server allows a client to use the "none" cipher, even if it is not allowed by the server policy.
How severe is CVE-1999-1010?: CVE-1999-1010 has a CVSS 2.0 base score of 2.1, rated low severity.
Is CVE-1999-1010 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-1010?: CVE-1999-1010 affects Openbsd Openssh. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-1999-1010?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-1999-1010 published?: CVE-1999-1010 was published on 1999-12-14 and last updated on 2026-06-16.

References

http://marc.info/?l=bugtraq&m=94519142415338&w=2

Affected products (1)

cpe:2.3:a:openbsd:openssh:1.2.27:*:*:*:*:*:*:*

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