How severe is CVE-1999-0955?

CVE-1999-0955 has a CVSS 2.0 base score of 7.6, rated high severity.

Is CVE-1999-0955 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-1999-0955?

CVE-1999-0955 affects Washington University Wu-ftpd. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-1999-0955?

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-1999-0955 published?

CVE-1999-0955 was published on 1997-09-23 and last updated on 2026-06-16.

CVE-1999-0955

CVE-1999-0955 is a high-severity vulnerability in Washington University Wu-ftpd with a CVSS 2.0 base score of 7.6. 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 7.6)
EPSS exploit prediction: 3% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Washington University Wu-ftpd
Published: 1997-09-23
Last modified: 2026-06-16

Description

Race condition in wu-ftpd and BSDI ftpd allows remote attackers to gain root access via the SITE EXEC command.

Frequently asked questions

What is CVE-1999-0955?: Race condition in wu-ftpd and BSDI ftpd allows remote attackers to gain root access via the SITE EXEC command.
How severe is CVE-1999-0955?: CVE-1999-0955 has a CVSS 2.0 base score of 7.6, rated high severity.
Is CVE-1999-0955 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-0955?: CVE-1999-0955 affects Washington University Wu-ftpd. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-1999-0955?: 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-1999-0955 published?: CVE-1999-0955 was published on 1997-09-23 and last updated on 2026-06-16.

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0955

Affected products (1)

cpe:2.3:a:washington_university:wu-ftpd:2.4.1:*:*:*:*:*:*:*

More vulnerabilities in Washington University Wu-ftpd

CVE-2004-0185 — Critical (CVSS 10.0): Buffer overflow in the skey_challenge function in ftpd.c for wu-ftp daemon (wu-ftpd) 2.6.2 allows remote attackers to…
CVE-2001-0187 — Critical (CVSS 10.0): Format string vulnerability in wu-ftp 2.6.1 and earlier, when running with debug mode enabled, allows remote attackers…
CVE-1999-0878 — Critical (CVSS 10.0): Buffer overflow in WU-FTPD and related FTP servers allows remote attackers to gain root privileges via MAPPING_CHDIR.
CVE-1999-0368 — Critical (CVSS 10.0): Buffer overflows in wuarchive ftpd (wu-ftpd) and ProFTPD lead to remote root access, a.k.a. palmetto.
CVE-1999-0080 — Critical (CVSS 10.0): Certain configurations of wu-ftp FTP server 2.4 use a _PATH_EXECPATH setting to a directory with dangerous commands,…
CVE-2003-1327 — Critical (CVSS 9.3): Buffer overflow in the SockPrintf function in wu-ftpd 2.6.2 and earlier, when compiled with MAIL_ADMIN option enabled…

All CVEs affecting Washington University Wu-ftpd →