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Vulnerability record · CVE-2026-71221 · published 3 September 2026

CVE-2026-71221: Redhat enterprise linux out-of-bounds write vulnerability

Redhat · Enterprise Linux

A stack out-of-bounds write vulnerability was found in gfs2-utils. In savemeta, the height value from on-disk inode metadata is used as a loop bound without bounds checking, causing a stack buffer overflow that may lead to arbitrary code execution when processing crafted GFS2 filesystem images.

7.0 CVSS 3.1 High EPSS 0.17% · top 94.1% CWE-787 · Out-of-bounds write
7.0CVSS 3.1 base score
0.17%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
22 Sep 2026Last modified by NVD

Description

A stack out-of-bounds write vulnerability was found in gfs2-utils. In savemeta, the height value from on-disk inode metadata is used as a loop bound without bounds checking, causing a stack buffer overflow that may lead to arbitrary code execution when processing crafted GFS2 filesystem images.

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

Affected products

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

References

LinkTags
https://access.redhat.com/security/cve/CVE-2026-71221 Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2511396 Issue TrackingVendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-71221), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.