CVE-2022-31807

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-05-23 · updated 2026-06-17
Weakness: CWE-347

Description

A vulnerability has been identified in Building X - Security Manager Edge Controller (ACC-AP) (All versions). Affected devices do not properly check the integrity of firmware updates. This could allow a local attacker to upload a maliciously modified firmware onto the device. In a second scenario, a remote attacker who is able to intercept the transfer of a valid firmware from the server to the device could modify the firmware "on the fly".

Affected products

Siemens Sipass Integrated Ac5102 (Acc-G2) Firmware: all versions
Siemens Sipass Integrated Acc-Ap Firmware: all versions

References

https://cert-portal.siemens.com/productcert/html/ssa-367714.html
https://cert-portal.siemens.com/productcert/html/ssa-420375.html

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