kbrain

CVE-2008-1923

HIGH · CVSS 7.1EPSS 1.4%EU EUVD

The IAX2 channel driver (chan_iax2) in Asterisk 1.2 before revision 72630 and 1.4 before revision 65679, when configured to allow unauthenticated calls, sends "early audio" to an unverified source IP address of a NEW message, which allows remote attackers to cause a denial of service (traffic amplification) via a spoofed NEW message.

Key facts

CVSS score
7.1 (v2.0)
Severity
HIGH
CVSS vector
AV:N/AC:M/Au:N/C:N/I:N/A:C
Weakness (CWE)
CWE-16
EPSS score
1.4% (73th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2008-1923)
Published
April 23, 2008
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2008-1923 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

  • asterisk / asterisk appliance developer kit
  • 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 / asterisknow
  • asterisk / asterisknow
  • asterisk / asterisknow
  • 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 86 more…

References

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

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