VulnerabilityUndergoing Analysis

CVE-2026-71221

A stack out-of-bounds write vulnerability was found in gfs2-utils.

HIGH 7.0EPSS 0.14%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.14%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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: 7.0 HIGHCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS: 0.14% probability · 3th percentile
CISA KEV: Not listed
Weakness: CWE-787
Source: secalert@redhat.com

References

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

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.