How severe is CVE-1999-0156?

CVE-1999-0156 has a CVSS 2.0 base score of 4.6, rated medium severity.

Is CVE-1999-0156 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-1999-0156?

CVE-1999-0156 affects Washington University Wu-ftpd. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-1999-0156?

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

When was CVE-1999-0156 published?

CVE-1999-0156 was published on 1997-07-01 and last updated on 2026-06-16.

CVE-1999-0156

CVE-1999-0156 is a medium-severity vulnerability in Washington University Wu-ftpd 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% (32nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Washington University Wu-ftpd
Published: 1997-07-01
Last modified: 2026-06-16

Description

wu-ftpd FTP daemon allows any user and password combination.

Frequently asked questions

What is CVE-1999-0156?: wu-ftpd FTP daemon allows any user and password combination.
How severe is CVE-1999-0156?: CVE-1999-0156 has a CVSS 2.0 base score of 4.6, rated medium severity.
Is CVE-1999-0156 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-0156?: CVE-1999-0156 affects Washington University Wu-ftpd. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-1999-0156?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-1999-0156 published?: CVE-1999-0156 was published on 1997-07-01 and last updated on 2026-06-16.

References

https://www.cve.org/CVERecord?id=CVE-1999-0156

Affected products (1)

cpe:2.3:a:washington_university:wu-ftpd:*:*:*:*:*:*:*:*

More vulnerabilities in Washington University Wu-ftpd

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