VULNERABILITY INTELLIGENCE

CVE-2012-5573

CVSS score5 MEDIUM
EPSS probability3.15%
CISA KEVNot currently listed
Published2013-01-01
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:N/I:N/A:P

Description

The connection_edge_process_relay_cell function in or/relay.c in Tor before 0.2.3.25 maintains circuits even if an unexpected SENDME cell arrives, which might allow remote attackers to cause a denial of service (memory consumption or excessive cell reception rate) or bypass intended flow-control restrictions via a RELAY_COMMAND_SENDME command.

Primary references