Medium 5.5Published Jul 10, 2025

CVE-2025-38272net: dsa: b53: do not enable EEE on bcm63xx

Updated under an hour ago (Oct 27, 2026, 1:23 PM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: net: dsa: b53: do not enable EEE on bcm63xx BCM63xx internal switches do not support EEE, but provide multiple RGMII ports where external PHYs may be connected. If one of these PHYs are EEE capable, we may try to enable EEE for the MACs, which then hangs the system on access of the (non-existent) EEE registers. Fix this by checking if the switch actually supports EEE before attempting to configure it.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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: Modified
Record last updated: Oct 21, 2026
First seen by InfoSec Signals: Oct 21, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	22256b0afb12333571ad11799fa68fd27e4f4e80 builds before 155bc8f94d52c01c0952acee8156f05f26d81ef6; 22256b0afb12333571ad11799fa68fd27e4f4e80 builds before 3fbe3f4c57fda09f32e13fa05f53a0cc6f500619; 22256b0afb12333571ad11799fa68fd27e4f4e80 builds before 2dbccf1eb8c04b84ee3afdb1d6b787db02e7befc; 22256b0afb12333571ad11799fa68fd27e4f4e80 builds before 1237c2d4a8db79dfd4369bff6930b0e385ed7d5c	CNA record
linux linux_kernel linux:linux_kernel	from 4.15 before 6.12.46; from 6.13 before 6.15.3	NVD

References

References

https://git.kernel.org/stable/c/155bc8f94d52c01c0952acee8156f05f26d81ef6
https://git.kernel.org/stable/c/3fbe3f4c57fda09f32e13fa05f53a0cc6f500619	patch
https://git.kernel.org/stable/c/2dbccf1eb8c04b84ee3afdb1d6b787db02e7befc	patch
https://git.kernel.org/stable/c/1237c2d4a8db79dfd4369bff6930b0e385ed7d5c	patch

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.