VulnerabilityPublished 10 Jul 2025Updated 21 Oct 2026

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

Affects Linux kernelSource CVE Database V5

Not known to be exploited · fixed in 1237c2d4a8db79dfd4369bff6930b0e385ed7d5c : update Linux kernel when convenient.

Data as of 26 Oct 2026, 14:18 UTC

Severity

Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

EPSS: 0.2% chance of exploitation in 30 days – higher than 12% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 1237c2d4a8db79dfd4369bff6930b0e385ed7d5c, 155bc8f94d52c01c0952acee8156f05f26d81ef6, 3fbe3f4c57fda09f32e13fa05f53a0cc6f500619 +1

Exploitation evidence

Disclosed: evidence found.
CVE published 10 Jul 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Linux kernel to 1237c2d4a8db79dfd4369bff6930b0e385ed7d5c, 155bc8f94d52c01c0952acee8156f05f26d81ef6, 3fbe3f4c57fda09f32e13fa05f53a0cc6f500619 or 2dbccf1eb8c04b84ee3afdb1d6b787db02e7befc.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 22256b0afb12333571ad11799fa68fd27e4f4e80, < 1237c2d4a8db79dfd4369bff6930b0e385ed7d5c	Fixed in 1237c2d4a8db79dfd4369bff6930b0e385ed7d5c
LinuxLinux	Affected ≥ 22256b0afb12333571ad11799fa68fd27e4f4e80, < 155bc8f94d52c01c0952acee8156f05f26d81ef6	Fixed in 155bc8f94d52c01c0952acee8156f05f26d81ef6
LinuxLinux	Affected ≥ 22256b0afb12333571ad11799fa68fd27e4f4e80, < 3fbe3f4c57fda09f32e13fa05f53a0cc6f500619	Fixed in 3fbe3f4c57fda09f32e13fa05f53a0cc6f500619
LinuxLinux	Affected ≥ 22256b0afb12333571ad11799fa68fd27e4f4e80, < 2dbccf1eb8c04b84ee3afdb1d6b787db02e7befc	Fixed in 2dbccf1eb8c04b84ee3afdb1d6b787db02e7befc
LinuxLinux	Affected =4.15	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

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