What’s Vulnerable › Vulnerabilities

CVE-2023-26544

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-02-25 · updated 2026-06-17
• Weakness: CWE-416

Description

In the Linux kernel 6.0.8, there is a use-after-free in run_unpack in fs/ntfs3/run.c, related to a difference between NTFS sector size and media sector size.

Affected products

• Linux kernel: from 5.15 before 5.15.87; from 5.16 before 6.0.17; from 6.1 before 6.1.3 — fixed in 5.15.87, 6.0.17, 6.1.3

How to fix

Upgrade to a fixed version: Linux kernel 5.15.87, 6.0.17, 6.1.3. Check the vendor advisory for mitigations.

References

• https://bugzilla.suse.com/show_bug.cgi?id=1208697
• https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=887bfc546097fbe8071dac13b2fef73b77920899
• https://lkml.org/lkml/2023/2/20/128
• https://security.netapp.com/advisory/ntap-20230316-0010/
• https://bugzilla.suse.com/show_bug.cgi?id=1208697
• https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=887bfc546097fbe8071dac13b2fef73b77920899
• https://lkml.org/lkml/2023/2/20/128
• https://security.netapp.com/advisory/ntap-20230316-0010/

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