How severe is CVE-2006-5229?

CVE-2006-5229 has a CVSS 2.0 base score of 2.6, rated low severity.

Is CVE-2006-5229 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 54% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-5229?

CVE-2006-5229 affects Openbsd Openssh. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2006-5229?

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

When was CVE-2006-5229 published?

CVE-2006-5229 was published on 2006-10-10 and last updated on 2026-06-16.

CVE-2006-5229

CVE-2006-5229 is a low-severity vulnerability in Openbsd Openssh with a CVSS 2.0 base score of 2.6. Its EPSS exploit-prediction score of 54% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-200.

Key facts

Severity: Low (CVSS 2.0 base score 2.6)
EPSS exploit prediction: 54% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Openbsd Openssh
Published: 2006-10-10
Last modified: 2026-06-16

Description

OpenSSH portable 4.1 on SUSE Linux, and possibly other platforms and versions, and possibly under limited configurations, allows remote attackers to determine valid usernames via timing discrepancies in which responses take longer for valid usernames than invalid ones, as demonstrated by sshtime. NOTE: as of 20061014, it appears that this issue is dependent on the use of manually-set passwords that causes delays when processing /etc/shadow due to an increased number of rounds.

Frequently asked questions

What is CVE-2006-5229?: OpenSSH portable 4.1 on SUSE Linux, and possibly other platforms and versions, and possibly under limited configurations, allows remote attackers to determine valid usernames via timing discrepancies in which responses take longer for valid usernames than invalid ones, as demonstrated by sshtime. NOTE: as of 20061014, it appears that this issue is dependent on the use of manually-set passwords that causes delays when processing /etc/shadow due to an increased number of rounds.
How severe is CVE-2006-5229?: CVE-2006-5229 has a CVSS 2.0 base score of 2.6, rated low severity.
Is CVE-2006-5229 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 54% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-5229?: CVE-2006-5229 affects Openbsd Openssh. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2006-5229?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-5229 published?: CVE-2006-5229 was published on 2006-10-10 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:openbsd:openssh:4.1:*:*:*:*:*:*:*

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