What’s Vulnerable › Vulnerabilities

CVE-1999-0990

• Severity: low (CVSS 2.1 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 1999-12-05 · updated 2026-06-16

Description

Error messages generated by gdm with the VerboseAuth setting allows an attacker to identify valid users on a system.

Affected products

• GNOME gdm: 2.0_beta4

References

• https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0990
• https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0990

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