VULNERABILITY INTELLIGENCE
CVE-2007-2297
CVSS score7.8 HIGH
EPSS probability2.39%
CISA KEVNot currently listed
Published2007-04-26
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:N/I:N/A:C
Description
The SIP channel driver (chan_sip) in Asterisk before 1.2.18 and 1.4.x before 1.4.3 does not properly parse SIP UDP packets that do not contain a valid response code, which allows remote attackers to cause a denial of service (crash).