Linux Linux Kernel Vulnerability Rated 8.4 CVSS

Last refreshed2026-10-15

Status: UPDATED | Advisory ID: CVE-2026-74690

Key Details

CVE	CVE-2026-74690
CVSS Score / Version	8.4 (High) / CVSS v3.1
Updated	2026-10-14
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products	Linux Kernel
Exploitation prediction (EPSS)	0.19% probability of exploitation in the next 30 days (8% percentile) -- FIRST.org's EPSS model.

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

In the Linux kernel, the following vulnerability has been resolved:

s390/ism: Fix UAF of sba and ieq during ism_dev_exit()

A ism interrupt handler can be active in parallel with ism_dev_exit(),

accessing freed data structures.

No new interrupts will be generated after unregister_ieq(). Drain ongoing

interrupt handlers by free_irq(), before freeing ism data structures. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-74690
CVE	https://www.cve.org/CVERecord?id=CVE-2026-74690

Source

Reference

NVD

CVE