Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2026-43474

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: fs: init flags_valid before calling vfs_fileattr_get syzbot reported a uninit-value bug in [1].

Published May 8, 2026CWE-908EPSS 0.16%

Overview

CVE-2026-43474 is a medium-severity vulnerability. It was published on May 8, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

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

fs: init flags_valid before calling vfs_fileattr_get

syzbot reported a uninit-value bug in [1].

Similar to the "*get" context where the kernel's internal file_kattr

structure is initialized before calling vfs_fileattr_get(), we should

use the same mechanism when using fa.

[1]

BUG: KMSAN: uninit-value in fuse_fileattr_get+0xeb4/0x1450 fs/fuse/ioctl.c:517

fuse_fileattr_get+0xeb4/0x1450 fs/fuse/ioctl.c:517

vfs_fileattr_get fs/file_attr.c:94 [inline]

__do_sys_file_getattr fs/file_attr.c:416 [inline]

Local variable fa.i created at:

__do_sys_file_getattr fs/file_attr.c:380 [inline]

__se_sys_file_getattr+0x8c/0xbd0 fs/file_attr.c:372

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/379e19e820dd1c6145426b97467728b3b89c0b42Refgit.kernel.org/stable/c/b8c182b2c8c44c6016b11d8af61715ad7ef958a1Refgit.kernel.org/stable/c/cb184dd19154fc486fa3d9e02afe70a97e54e055

How CyberStrike helps

Frequently asked questions

What is CVE-2026-43474?

CVE-2026-43474 is a medium-severity vulnerability. It was published on May 8, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-43474?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-43474?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-43474?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-43474 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

Related MEDIUM CVEs from 2026

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999