What’s Vulnerable › Vulnerabilities

CVE-2009-2435

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2009-07-13 · updated 2026-06-16
• Weakness: CWE-255

Description

The Sametime server in IBM Lotus Instant Messaging and Web Conferencing 6.5.1 generates error messages for a failed logon attempt with different time delays depending on whether the user account exists, which allows remote attackers to enumerate valid usernames.

Affected products

• IBM Lotus Instant Messaging And Web Conferencing: 6.5.1

References

• http://www.securityfocus.com/bid/35614
• http://www.senseofsecurity.com.au/advisories/SOS-09-004.pdf
• http://www.securityfocus.com/bid/35614
• http://www.senseofsecurity.com.au/advisories/SOS-09-004.pdf

Get alerted when CVE-2009-2435 or the next vulnerability affects your stack