CVE-2022-29878: Siemens 7kg8500-0aa00-0aa0 Firmware

High severity, CVSS 7.5. EPSS: 1.1% chance of exploitation in the next 30 days.

A vulnerability has been identified in SICAM T (All versions < V3.0). Affected devices use a limited range for challenges that are sent during the unencrypted challenge-response communication. An unauthenticated attacker could capture a valid challenge-response pair generated by a legitimate user, and request the webpage repeatedly to wait for the same challenge to reappear for which the correct response is known. This could allow the attacker to access the management interface of the device.

Affected products

• Siemens 7kg8500-0aa00-0aa0 Firmware: before 3.00 (fixed in 3.00)
• Siemens 7kg8500-0aa00-2aa0 Firmware: before 3.00 (fixed in 3.00)
• Siemens 7kg8500-0aa10-0aa0 Firmware: before 3.00 (fixed in 3.00)
• Siemens 7kg8500-0aa10-2aa0 Firmware: before 3.00 (fixed in 3.00)
• Siemens 7kg8500-0aa30-0aa0 Firmware: before 3.00 (fixed in 3.00)
• Siemens 7kg8500-0aa30-2aa0 Firmware: before 3.00 (fixed in 3.00)
• Siemens 7kg8501-0aa01-0aa0 Firmware: before 3.00 (fixed in 3.00)
• Siemens 7kg8501-0aa01-2aa0 Firmware: before 3.00 (fixed in 3.00)
• Siemens 7kg8501-0aa02-0aa0 Firmware: before 3.00 (fixed in 3.00)
• Siemens 7kg8501-0aa02-2aa0 Firmware: before 3.00 (fixed in 3.00)
• Siemens 7kg8501-0aa11-0aa0 Firmware: before 3.00 (fixed in 3.00)
• Siemens 7kg8501-0aa11-2aa0 Firmware: before 3.00 (fixed in 3.00)
• Siemens 7kg8501-0aa12-0aa0 Firmware: before 3.00 (fixed in 3.00)
• Siemens 7kg8501-0aa12-2aa0 Firmware: before 3.00 (fixed in 3.00)
• Siemens 7kg8501-0aa31-0aa0 Firmware: before 3.00 (fixed in 3.00)
• Siemens 7kg8501-0aa31-2aa0 Firmware: before 3.00 (fixed in 3.00)
• Siemens 7kg8501-0aa32-0aa0 Firmware: before 3.00 (fixed in 3.00)
• Siemens 7kg8501-0aa32-2aa0 Firmware: before 3.00 (fixed in 3.00)
• Siemens 7kg8550-0aa00-0aa0 Firmware: before 3.00 (fixed in 3.00)
• Siemens 7kg8550-0aa00-2aa0 Firmware: before 3.00 (fixed in 3.00)
• Siemens 7kg8550-0aa10-0aa0 Firmware: before 3.00 (fixed in 3.00)
• Siemens 7kg8550-0aa10-2aa0 Firmware: before 3.00 (fixed in 3.00)
• Siemens 7kg8550-0aa30-0aa0 Firmware: before 3.00 (fixed in 3.00)
• Siemens 7kg8550-0aa30-2aa0 Firmware: before 3.00 (fixed in 3.00)
• Siemens 7kg8551-0aa01-0aa0 Firmware: before 3.00 (fixed in 3.00)
• and 11 more

Published 2022-05-20. Last modified 2026-06-17.