01 Record

CVE-2026-64586

wifi: brcmfmac: drain bus_reset work on device removal

HighPUBLISHEDCNA: Linux

CNA base score8.8 CVSS v3.xCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

View raw JSON

02 Description

wifi: brcmfmac: drain bus_reset work on device removal

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.25% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 16.2% of scored records. A rank, not a probability.

NVD base score

8.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Received. NVD last modified this record on 2026-10-19.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2026-08-06 07:06Z2 MO AGO

Last updated

2026-10-19 20:48Z9 DAYS AGO

Reserved

2026-07-19

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-416Use After FreeVariant

Data version

5.2

Document digest

872d63e850c89b5bd28e4612568de496f09d6413b0b186a67ca92391f6765e1b

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux4684997d9eea29380000e062755aa6d368d789a3 to < 9dfb09cb0abbf92a06f93e0715e163aa188a84da, 4684997d9eea29380000e062755aa6d368d789a3 to < 4824e3bcc68f8d678b409039d1bb48c7b5ea73dc, 4684997d9eea29380000e062755aa6d368d789a3 to < 61127dd20920bf28460a1609aabb0dafa2f54fac, 4684997d9eea29380000e062755aa6d368d789a3 to < c268331845ee00dbdbccb000826bb612dff2bee7, 4684997d9eea29380000e062755aa6d368d789a3 to < e3815d1ffbb9be4f1605ddc3b427557893461683, 4684997d9eea29380000e062755aa6d368d789a3 to < 02d378828af8bb74f6c2f4d2bee3c77cf16c861e, 4684997d9eea29380000e062755aa6d368d789a3 to < 177a25be1195f8bdc6160ba5f1a5699f7041c985, 4684997d9eea29380000e062755aa6d368d789a3 to < 43b25879f004c98defa2776bedc6ca4763c51945, 5.2—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/9dfb09cb0abbf92a06f93e0715e163aa188a84da
git.kernel.orghttps://git.kernel.org/stable/c/4824e3bcc68f8d678b409039d1bb48c7b5ea73dc
git.kernel.orghttps://git.kernel.org/stable/c/61127dd20920bf28460a1609aabb0dafa2f54fac
git.kernel.orghttps://git.kernel.org/stable/c/c268331845ee00dbdbccb000826bb612dff2bee7
git.kernel.orghttps://git.kernel.org/stable/c/e3815d1ffbb9be4f1605ddc3b427557893461683
git.kernel.orghttps://git.kernel.org/stable/c/02d378828af8bb74f6c2f4d2bee3c77cf16c861e
git.kernel.orghttps://git.kernel.org/stable/c/177a25be1195f8bdc6160ba5f1a5699f7041c985
git.kernel.orghttps://git.kernel.org/stable/c/43b25879f004c98defa2776bedc6ca4763c51945

07 Fixed in

Debian 12

linux
Fixed in 6.1.187-1
linux-6.12
Fixed in 6.12.107-1~deb12u1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.12.105-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 7.1.6-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.