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ReviewHigh

CVE-2026-74511

Linux

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: mgmt: fix pending command UAF in EIR updates MGMT_OP_SET_LOCAL_NAME is handled asynchronously on powered controllers and can run set_name_sync(). When the controller is BR/EDR capable, set_name_sync() updates the local name and then rebuilds EIR data through eir_create(). The EIR builder walks hdev->uuids, but the UUID list can be changed and entries can be freed by MGMT_OP_ADD_UUID and MGMT_OP_REMOVE_UUID. pending_eir_or_class() is meant to serialize management commands that can change EIR or the class of device...

CVSS
7.8
EPSS
-
- percentile
CISA KEV
Not listed
Published
2026.08.15
PRIORITY ASSESSMENT

Review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability-
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: mgmt: fix pending command UAF in EIR updates MGMT_OP_SET_LOCAL_NAME is handled asynchronously on powered controllers and can run set_name_sync(). When the controller is BR/EDR capable, set_name_sync() updates the local name and then rebuilds EIR data through eir_create(). The EIR builder walks hdev->uuids, but the UUID list can be changed and entries can be freed by MGMT_OP_ADD_UUID and MGMT_OP_REMOVE_UUID. pending_eir_or_class() is meant to serialize management commands that can change EIR or the class of device...

Affected product and versions

Product
Linux
Affected versions
>= bdd56875c6926d8009914f427df71797693e90d4 < a9e7c2609b0cb3fb4b4ba9f66dd8727d33205967, >= 4e83f2dbb2bf677e614109df24426c4dded472d4 < eacfcb6b735d0e16b4d2ecfde4b9141225ee934e, >= 6fe26f694c824b8a4dbf50c635bee1302e3f099c < 814f82f432dc6ee4d15f94756554ff94e6e3ef05, >= 6fe26f694c824b8a4dbf50c635bee1302e3f099c < 35464ff818165131464bd524c259db1ac8044ae3, >= 6fe26f694c824b8a4dbf50c635bee1302e3f099c < 8f2f62855a41d1730fb9e8122912bd2c8d6bed5d, >= d7882db79135c829a922daf3571f33ea1e056ae3, >= 6.6.94 < 6.6.151, >= 6.12.34 < 6.12.103, >= 6.15.3 < 6.16, >= 6.16
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Not available