How severe is CVE-2001-0471?

CVE-2001-0471 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2001-0471 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2001-0471?

CVE-2001-0471 affects Ssh. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2001-0471?

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-2001-0471 published?

CVE-2001-0471 was published on 2001-06-27 and last updated on 2026-06-16.

CVE-2001-0471

CVE-2001-0471 is a high-severity vulnerability in Ssh 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

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 6% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Ssh
Published: 2001-06-27
Last modified: 2026-06-16

Description

SSH daemon version 1 (aka SSHD-1 or SSH-1) 1.2.30 and earlier does not log repeated login attempts, which could allow remote attackers to compromise accounts without detection via a brute force attack.

Frequently asked questions

What is CVE-2001-0471?: SSH daemon version 1 (aka SSHD-1 or SSH-1) 1.2.30 and earlier does not log repeated login attempts, which could allow remote attackers to compromise accounts without detection via a brute force attack.
How severe is CVE-2001-0471?: CVE-2001-0471 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2001-0471 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2001-0471?: CVE-2001-0471 affects Ssh. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2001-0471?: 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-2001-0471 published?: CVE-2001-0471 was published on 2001-06-27 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:ssh:ssh:*:*:*:*:*:*:*:*

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