CVE-2022-40226: Siemens 7kg8500-0aa00-0aa0 Firmware

High severity, CVSS 8.1. EPSS: 0.8% chance of exploitation in the next 30 days.

A vulnerability has been identified in SICAM P850 (7KG8500-0AA00-0AA0) (All versions < V3.10), SICAM P850 (7KG8500-0AA00-2AA0) (All versions < V3.10), SICAM P850 (7KG8500-0AA10-0AA0) (All versions < V3.10), SICAM P850 (7KG8500-0AA10-2AA0) (All versions < V3.10), SICAM P850 (7KG8500-0AA30-0AA0) (All versions < V3.10), SICAM P850 (7KG8500-0AA30-2AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA01-0AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA01-2AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA02-0AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA02-2AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA11-0AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA11-2AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA12-0AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA12-2AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA31-0AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA31-2AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA32-0AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA32-2AA0) (All versions < V3.10), SICAM P855 (7KG8550-0AA00-0AA0) (All versions < V3.10), SICAM P855 (7KG8550-0AA00-2AA0) (All versions < V3.10), SICAM P855 (7KG8550-0AA10-0AA0) (All versions < V3.10), SICAM P855 (7KG8550-0AA10-2AA0) (All versions < V3.10), SICAM P855 (7KG8550-0AA30-0AA0) (All versions < V3.10), SICAM P855 (7KG8550-0AA30-2AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA01-0AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA01-2AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA02-0AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA02-2AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA11-0AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA11-2AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA12-0AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA12-2AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA31-0AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA31-2AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA32-0AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA32-2AA0) (All versions < V3.10), SICAM T (All versions < V3.0). Affected devices accept user defined session cookies and do not renew the session cookie after login/logout. This could allow an attacker to take over another user's session after login.

Affected products

Siemens 7kg8500-0aa00-0aa0 Firmware: before 3.10 (fixed in 3.10)
Siemens 7kg8500-0aa00-2aa0 Firmware: before 3.10 (fixed in 3.10)
Siemens 7kg8500-0aa10-0aa0 Firmware: before 3.10 (fixed in 3.10)
Siemens 7kg8500-0aa10-2aa0 Firmware: before 3.10 (fixed in 3.10)
Siemens 7kg8500-0aa30-0aa0 Firmware: before 3.10 (fixed in 3.10)
Siemens 7kg8500-0aa30-2aa0 Firmware: before 3.10 (fixed in 3.10)
Siemens 7kg8501-0aa01-0aa0 Firmware: before 3.10 (fixed in 3.10)
Siemens 7kg8501-0aa01-2aa0 Firmware: before 3.10 (fixed in 3.10)
Siemens 7kg8501-0aa02-0aa0 Firmware: before 3.10 (fixed in 3.10)
Siemens 7kg8501-0aa02-2aa0 Firmware: before 3.10 (fixed in 3.10)
Siemens 7kg8501-0aa11-0aa0 Firmware: before 3.10 (fixed in 3.10)
Siemens 7kg8501-0aa11-2aa0 Firmware: before 3.10 (fixed in 3.10)
Siemens 7kg8501-0aa12-0aa0 Firmware: before 3.10 (fixed in 3.10)
Siemens 7kg8501-0aa12-2aa0 Firmware: before 3.10 (fixed in 3.10)
Siemens 7kg8501-0aa31-0aa0 Firmware: before 3.10 (fixed in 3.10)
Siemens 7kg8501-0aa31-2aa0 Firmware: before 3.10 (fixed in 3.10)
Siemens 7kg8501-0aa32-0aa0 Firmware: before 3.10 (fixed in 3.10)
Siemens 7kg8501-0aa32-2aa0 Firmware: before 3.10 (fixed in 3.10)
Siemens 7kg8550-0aa00-0aa0 Firmware: before 3.10 (fixed in 3.10)
Siemens 7kg8550-0aa00-2aa0 Firmware: before 3.10 (fixed in 3.10)
Siemens 7kg8550-0aa10-0aa0 Firmware: before 3.10 (fixed in 3.10)
Siemens 7kg8550-0aa10-2aa0 Firmware: before 3.10 (fixed in 3.10)
Siemens 7kg8550-0aa30-0aa0 Firmware: before 3.10 (fixed in 3.10)
Siemens 7kg8550-0aa30-2aa0 Firmware: before 3.10 (fixed in 3.10)
Siemens 7kg8551-0aa01-0aa0 Firmware: before 3.10 (fixed in 3.10)
and 11 more

Published 2022-10-11. Last modified 2026-06-17.