CVE-1999-0527
CVE-1999-0527 is a critical-severity vulnerability with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: Critical (CVSS 2.0 base score 10.0)
- EPSS exploit prediction: 2% (78th percentile)
- Actively exploited: Not listed in CISA KEV
- Published:
- Last modified:
Description
The permissions for system-critical data in an anonymous FTP account are inappropriate. For example, the root directory is writeable by world, a real password file is obtainable, or executable commands such as "ls" can be overwritten.
Frequently asked questions
- What is CVE-1999-0527?
- The permissions for system-critical data in an anonymous FTP account are inappropriate. For example, the root directory is writeable by world, a real password file is obtainable, or executable commands such as "ls" can be overwritten.
- How severe is CVE-1999-0527?
- CVE-1999-0527 has a CVSS 2.0 base score of 10.0, rated critical severity.
- Is CVE-1999-0527 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-1999-0527?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-1999-0527 published?
- CVE-1999-0527 was published on 1999-01-01 and last updated on 2026-06-16.