CVE-2022-2741: can: denial-of-service can be triggered by a crafted CAN frame

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-10-31 · updated 2026-06-17
Weakness: CWE-400

Description

The denial-of-service can be triggered by transmitting a carefully crafted CAN frame on the same CAN network as the vulnerable node. The frame must have a CAN ID matching an installed filter in the vulnerable node (this can easily be guessed based on CAN traffic analyses). The frame must contain the opposite RTR bit as what the filter installed in the vulnerable node contains (if the filter matches RTR frames, the frame must be a data frame or vice versa).

Affected products

zephyrproject zephyr: through 3.1.0

References

https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-hx5v-j59q-c3j8
https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-hx5v-j59q-c3j8

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