CVSS 3.1 Score 7.5 of 10 (high)


Published Oct 13, 2023
Updated: Oct 18, 2023
CWE ID 703


CVE-2023-5563 is a high-severity vulnerability that affects multiple products, including those with the codes 'bQefx_' and 'bQefx-'. The vulnerability occurs in the SJA1000 CAN controller driver backend when it is built with CONFIG_CAN_AUTO_BUS_OFF_RECOVERY=y. This results in a fatal exception caused by calling k_sleep() in IRQ context as an attempt to recover from a bus-off event. The potential danger to organizations is significant due to the high availability impact, with a base severity score of 7.5. To remediate this vulnerability, affected organizations should update their software or firmware to address the issue.

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