What’s Vulnerable › Vulnerabilities

CVE-2022-43546

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-11-08 · updated 2026-06-17
• Weakness: CWE-20

Description

A vulnerability has been identified in POWER METER SICAM Q100 (All versions < V2.50), POWER METER SICAM Q100 (All versions < V2.50), POWER METER SICAM Q100 (All versions < V2.50), POWER METER SICAM Q100 (All versions < V2.50), SICAM P850 (All versions < V3.10), SICAM P850 (All versions < V3.10), SICAM P850 (All versions < V3.10), SICAM P850 (All versions < V3.10), SICAM P850 (All versions < V3.10), SICAM P850 (All versions < V3.10), SICAM P850 (All versions < V3.10), SICAM P850 (All versions < V3.10), SICAM P850 (All versions < V3.10), SICAM P850 (All versions < V3.10), SICAM P850 (All versions < V3.10), SICAM P850 (All versions < V3.10), SICAM P850 (All versions < V3.10), SICAM P850 (All versions < V3.10), SICAM P850 (All versions < V3.10), SICAM P850 (All versions < V3.10), SICAM P850 (All versions < V3.10), SICAM P850 (All versions < V3.10), SICAM P855 (All versions < V3.10), SICAM P855 (All versions < V3.10), SICAM P855 (All versions < V3.10), SICAM P855 (All versions < V3.10), SICAM P855 (All versions < V3.10), SICAM P855 (All versions < V3.10), SICAM P855 (All versions < V3.10), SICAM P855 (All versions < V3.10), SICAM P855 (All versions < V3.10), SICAM P855 (All versions < V3.10), SICAM P855 (All versions < V3.10), SICAM P855 (All versions < V3.10), SICAM P855 (All versions < V3.10), SICAM P855 (All versions < V3.10), SICAM P855 (All versions < V3.10), SICAM P855 (All versions < V3.10), SICAM P855 (All versions < V3.10), SICAM P855 (All versions < V3.10). Affected devices do not properly validate the EndTime-parameter in requests to the web interface on port 443/tcp. This could allow an authenticated remote attacker to crash the device (followed by an automatic reboot) or to execute arbitrary code on the device.

Affected products

• Siemens 7Kg9501-0Aa01-2Aa1 Firmware: before 2.50 — fixed in 2.50
• Siemens 7Kg9501-0Aa31-2Aa1 Firmware: before 2.50 — fixed in 2.50

How to fix

Upgrade to a fixed version: Siemens 7Kg9501-0Aa01-2Aa1 Firmware 2.50; Siemens 7Kg9501-0Aa31-2Aa1 Firmware 2.50. Check the vendor advisory for mitigations.

References

• https://cert-portal.siemens.com/productcert/pdf/ssa-570294.pdf
• https://cert-portal.siemens.com/productcert/pdf/ssa-572005.pdf
• https://cert-portal.siemens.com/productcert/pdf/ssa-887249.pdf
• https://cert-portal.siemens.com/productcert/pdf/ssa-570294.pdf
• https://cert-portal.siemens.com/productcert/pdf/ssa-572005.pdf
• https://cert-portal.siemens.com/productcert/pdf/ssa-887249.pdf

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