CVE-2026-71221CWE-787

CVE-2026-71221

High · published September 3, 2026

CVSS v3.1
7.0
EPSS
0%
Percentile
6.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.0 · HIGH
Vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00172 · 6.2th percentile
Weakness
CWE-787 · Out-of-bounds Write
Published
2026-09-03T17:06Z
Affected products (3)
ProductVersionsFixed in
redhat/enterprise_linuxall versions—
redhat/enterprise_linuxall versions—
redhat/enterprise_linuxall versions—
References (2)
https://access.redhat.com/security/cve/CVE-2026-71221 · [email protected]https://bugzilla.redhat.com/show_bug.cgi?id=2511396 · [email protected]
EPSS history
Timeline
  • 05 SEP 03:44Z
    EPSS moved — → 0%
    epss
  • 03 SEP 12:23Z
    Gfs2-utils: gfs2-utils: stack out-of-bounds write via unchecked height in savemeta
    cvelistv5