What’s Vulnerable › Vulnerabilities

CVE-1999-1090

• Severity: high (CVSS 7.5 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 1991-09-10 · updated 2026-06-16

Description

The default configuration of NCSA Telnet package for Macintosh and PC enables FTP, even though it does not include an "ftp=yes" line, which allows remote attackers to read and modify arbitrary files.

Affected products

• Ncsa Telnet: all versions

References

• http://www.cert.org/advisories/CA-1991-15.html
• https://exchange.xforce.ibmcloud.com/vulnerabilities/1844
• http://www.cert.org/advisories/CA-1991-15.html
• https://exchange.xforce.ibmcloud.com/vulnerabilities/1844

Get alerted when CVE-1999-1090 or the next vulnerability affects your stack