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Vulnerability record · CVE-2022-1011 · published 18 March 2022

CVE-2022-1011: Linux kernel use after free vulnerability

Linux · Linux Kernel

A use-after-free flaw was found in the Linux kernel’s FUSE filesystem in the way a user triggers write(). This flaw allows a local user to gain unauthorized access to data from the FUSE filesystem, resulting in privilege escalation.

7.8 CVSS 3.1 High EPSS 1.2% · top 33.9% CWE-416 · Use after free
7.8CVSS 3.1 base score, v2 4.6
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
30Affected product versions listed by NVD
10References
26 Aug 2026Last modified by NVD

Description

A use-after-free flaw was found in the Linux kernel’s FUSE filesystem in the way a user triggers write(). This flaw allows a local user to gain unauthorized access to data from the FUSE filesystem, resulting in privilege escalation.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

30 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://bugzilla.redhat.com/show_bug.cgi?id=2064855 Issue TrackingThird Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse.git/commit/?h=for-next Vendor Advisory
https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html Mailing ListThird Party Advisory
https://www.debian.org/security/2022/dsa-5173 Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.html Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2064855 Issue TrackingThird Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse.git/commit/?h=for-next Vendor Advisory
https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html Mailing ListThird Party Advisory
https://www.debian.org/security/2022/dsa-5173 Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.html Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2022-1011), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.