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CVE-2009-0041

MEDIUM · CVSS 5.0EPSS 2.7%EU EUVD

IAX2 in Asterisk Open Source 1.2.x before 1.2.31, 1.4.x before 1.4.23-rc4, and 1.6.x before 1.6.0.3-rc2; Business Edition A.x.x, B.x.x before B.2.5.7, C.1.x.x before C.1.10.4, and C.2.x.x before C.2.1.2.1; and s800i 1.2.x before 1.3.0 responds differently to a failed login attempt depending on whether the user account exists, which allows remote attackers to enumerate valid usernames.

Key facts

CVSS score
5.0 (v2.0)
Severity
MEDIUM
CVSS vector
AV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness (CWE)
CWE-200
EPSS score
2.7% (86th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2009-0050)
Published
January 14, 2009
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2009-0050 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

  • asterisk / asterisk business edition
  • asterisk / asterisk business edition
  • asterisk / asterisk business edition
  • asterisk / asterisk business edition
  • asterisk / asterisk business edition
  • asterisk / asterisk business edition
  • asterisk / asterisk business edition
  • asterisk / asterisk business edition
  • asterisk / asterisk business edition
  • asterisk / asterisk business edition
  • asterisk / asterisk business edition
  • asterisk / asterisk business edition
  • asterisk / asterisk business edition
  • asterisk / asterisk business edition
  • asterisk / asterisk business edition
  • asterisk / asterisk business edition
  • asterisk / asterisk business edition
  • asterisk / open source
  • asterisk / open source
  • asterisk / open source
  • asterisk / open source
  • asterisk / open source
  • asterisk / open source
  • asterisk / open source
  • asterisk / open source
  • asterisk / open source
  • asterisk / open source
  • asterisk / open source
  • asterisk / open source
  • asterisk / open source
  • asterisk / open source
  • asterisk / open source
  • asterisk / open source
  • asterisk / open source
  • asterisk / open source
  • asterisk / open source
  • asterisk / open source
  • asterisk / open source
  • asterisk / open source
  • asterisk / open source
  • asterisk / open source
  • asterisk / open source
  • asterisk / open source
  • asterisk / open source
  • asterisk / open source
  • asterisk / open source
  • asterisk / open source
  • asterisk / open source
  • asterisk / open source
  • asterisk / open source

and 100 more…

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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