Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2026-45864

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: prevent infinite loops caused by the next valid being the same When processing valid within the range [valid : pos),…

Published May 27, 2026CWE-835EPSS 0.16%

Overview

CVE-2026-45864 is a medium-severity vulnerability. It was published on May 27, 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/ntfs3: prevent infinite loops caused by the next valid being the same

When processing valid within the range [valid : pos), if valid cannot

be retrieved correctly, for example, if the retrieved valid value is

always the same, this can trigger a potential infinite loop, similar

to the hung problem reported by syzbot [1].

Adding a check for the valid value within the loop body, and terminating

the loop and returning -EINVAL if the value is the same as the current

value, can prevent this.

[1]

INFO: task syz.4.21:6056 blocked for more than 143 seconds.

Call Trace:

rwbase_write_lock+0x14f/0x750 kernel/locking/rwbase_rt.c:244

inode_lock include/linux/fs.h:1027 [inline]

ntfs_file_write_iter+0xe6/0x870 fs/ntfs3/file.c:1284

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/27b75ca4e51e3e4554dc85dbf1a0246c66106fd3Refgit.kernel.org/stable/c/4bf3bafb8e0635ed93e3cd4156dcbcc0fb960cb4Refgit.kernel.org/stable/c/50c822fcb36768f1fb356f05b02a2248ef81936dRefgit.kernel.org/stable/c/6d93239b4fc479f7c0a412dd196ec0ca2672d14aRefgit.kernel.org/stable/c/71c8b966ec56e13c02388c1312910588bb49be7aRefgit.kernel.org/stable/c/a47a2bb9aa6455d5cee1045814a60c749309c92bRefgit.kernel.org/stable/c/b97e371e5d1c13d722335d46eb8bc1a22b272a0e

How CyberStrike helps

Frequently asked questions

What is CVE-2026-45864?

CVE-2026-45864 is a medium-severity vulnerability. It was published on May 27, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-45864?

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-2026-45864?

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-2026-45864?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-45864 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