CVE-2025-38272: Linux kernel · net: dsa: b53: do not enable EEE on bcm63xx
Source GCVE Database
Not known to be exploited · CVSS 5.5 Medium · fixed in 1237c2d4a8db79dfd4369bff6930b0e385ed7d5c : update Linux kernel when convenient.
Data as of 30 Oct 2026, 16:33 UTC
Thin evidence
One scorer or none- Patch
- Available – fixed in 1237c2d4a8db79dfd4369bff6930b0e385ed7d5c, 155bc8f94d52c01c0952acee8156f05f26d81ef6, 3fbe3f4c57fda09f32e13fa05f53a0cc6f500619 +2
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 10 Jul 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in– |
Description
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.
References
- nvd.nist.gov/vuln/detail/CVE-2025-38272 (opens in a new tab)
- git.kernel.org/stable/c/1237c2d4a8db79dfd4369bff6930b0e385ed7d5c (opens in a new tab)
- git.kernel.org/stable/c/155bc8f94d52c01c0952acee8156f05f26d81ef6 (opens in a new tab)
- git.kernel.org/stable/c/2dbccf1eb8c04b84ee3afdb1d6b787db02e7befc (opens in a new tab)
- git.kernel.org/stable/c/3f87fe8ceaa775a5b0ed02802146c1f4743998fb (opens in a new tab)
- git.kernel.org/stable/c/3fbe3f4c57fda09f32e13fa05f53a0cc6f500619 (opens in a new tab)