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VulnerabilityCVE-2026-64529Published 2026-07-25

CVE-2026-64529 — Linux

As of 2026-07-25, CVE-2026-64529 is a vulnerability in Linux, EPSS 0.1% (9.5th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-64529 as of 2026-07-25; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

CVSS
—Not yet scored
EPSS
0.1%Higher than 9.5% of scored CVEs
CISA KEV
NoNot in the KEV catalog
Tracked threats
0None linked yet
Priority
0.4/10Threadlinqs triage score
Published
EPSS 0.1% (higher than 9.5% of all scored CVEs) · Priority 0.4/10 · Published 2026-07-25

Last updated:

What is CVE-2026-64529?

In the Linux kernel, the following vulnerability has been resolved: crypto: qat - remove unused character device and IOCTLs The QAT driver exposes a character device (qat_adf_ctl) with IOCTLs for device configuration, start, stop, status query and enumeration. These IOCTLs are not part of any public uAPI header and have no known in-tree or out-of-tree users. Device lifecycle is already managed via sysfs. The ioctl interface also increases the attack surface and is the subject of a number of bug reports. Remove the character device, the IOCTL definitions, and the related data structures (adf_dev_status_info, adf_user_cfg_key_val, adf_user_cfg_section, adf_user_cfg_ctl_data). Drop the now-unused adf_cfg_user.h header and strip adf_ctl_drv.c down to the minimal module_init/module_exit hooks for workqueue, AER, and crypto/compression algorithm registration. Clean up leftover dead code that was only reachable from the removed IOCTL paths: adf_cfg_del_all(), adf_devmgr_verify_id(), adf_devmgr_get_num_dev(), adf_devmgr_get_dev_by_id(), adf_get_vf_real_id() and the unused ADF_CFG macros. Additionally, drop the entry associated to QAT IOCTLs in ioctl-number.rst.

1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 72 days ago.

Severity and exploitation probability

EPSS (FIRST)
0.1% probability of exploitation in the next 30 days, higher than 9.5% of all scored CVEs
CISA KEV
Not listed in the CISA Known Exploited Vulnerabilities catalog
Threadlinqs priority
0.4/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
Published
2026-07-25

Is CVE-2026-64529 being exploited?

It currently carries a trending score of 32 in the Threadlinqs vulnerability feed.

Affected products and versions

How to fix CVE-2026-64529

No vendor patch reference has been recorded for CVE-2026-64529 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

Threat activity tracking CVE-2026-64529

No threat campaign in the Threadlinqs corpus currently references CVE-2026-64529, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

Sources

Enriched from CVE.org, NVD, FIRST EPSS. Last verified by Threadlinqs on . This product uses the NVD API but is not endorsed or certified by the NVD.

Other references

Showing 5 of 9 recorded references.