High 7.8Published Aug 15, 2026

CVE-2026-72114can: bcm: validate frame length in bcm_rx_setup() for RTR replies

Updated under an hour ago (Oct 27, 2026, 7:00 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: can: bcm: validate frame length in bcm_rx_setup() for RTR replies bcm_tx_setup() validates cf->len against the CAN/CAN FD DLC limits before installing frames for TX_SETUP, but bcm_rx_setup() never did the same for the RTR-reply frame configured via RX_SETUP with RX_RTR_FRAME.

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Received
Record last updated: Oct 16, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from ffd980f976e7fd666c2e61bf8ab35107efd11828 before cc1f9569f1c1adf74fa69d6f716a31b58a2fc6ce; from ffd980f976e7fd666c2e61bf8ab35107efd11828 before 204f2b232717bc470ddb9e1da1d27dd9c6ef0caa; from ffd980f976e7fd666c2e61bf8ab35107efd11828 before e061624c0a86c3c26a2bf017e432fbc93ad68f3a; from ffd980f976e7fd666c2e61bf8ab35107efd11828 before 7d966cdee006911d3957e1a4e72cb93c39cd8c1e; from ffd980f976e7fd666c2e61bf8ab35107efd11828 before 1b475c0c72f44622a320a4386ce9e76f85e69bc7; from ffd980f976e7fd666c2e61bf8ab35107efd11828 before deb6a697cce3f021e731df543597f37a5e54caab; from ffd980f976e7fd666c2e61bf8ab35107efd11828 before 59bfddea64159594feb62ef11b7d7a33c8ee3783; from ffd980f976e7fd666c2e61bf8ab35107efd11828 before 62ec41f364648be79d54d94d0d240ee326948afd	CNA record

References

References

https://git.kernel.org/stable/c/cc1f9569f1c1adf74fa69d6f716a31b58a2fc6ce
https://git.kernel.org/stable/c/204f2b232717bc470ddb9e1da1d27dd9c6ef0caa
https://git.kernel.org/stable/c/e061624c0a86c3c26a2bf017e432fbc93ad68f3a
https://git.kernel.org/stable/c/7d966cdee006911d3957e1a4e72cb93c39cd8c1e
https://git.kernel.org/stable/c/1b475c0c72f44622a320a4386ce9e76f85e69bc7
https://git.kernel.org/stable/c/deb6a697cce3f021e731df543597f37a5e54caab
https://git.kernel.org/stable/c/59bfddea64159594feb62ef11b7d7a33c8ee3783
https://git.kernel.org/stable/c/62ec41f364648be79d54d94d0d240ee326948afd

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.