VULNERABILITY INTELLIGENCE
CVE-2007-4553
CVSS score5 MEDIUM
EPSS probability8.21%
CISA KEVNot currently listed
Published2007-08-28
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:N/I:N/A:P
Description
The Thomson ST 2030 SIP phone with software 1.52.1 allows remote attackers to cause a denial of service (device hang) via an INVITE message with a Via header that contains a '/' (slash) instead of the required space following the SIP version number.