CVE-2026-88839CWE-787

CVE-2026-88839

Medium · published September 23, 2026

CVSS v3.1
6.7
EPSS
0%
Percentile
1.9
In the wild
Unconfirmed
What it is

BusyBox passwd/group tokenize() references a stale endpoint pointer after trimming, causing an out-of-bounds write of heap pointers.

The record
Technical detail
CVSS v3.1
6.7 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00123 · 1.9th percentile
Weakness
CWE-787 · Out-of-bounds Write
Published
2026-09-23T22:17Z
References (3)
https://access.redhat.com/errata/RHSA-2026:72111 · [email protected]https://access.redhat.com/security/cve/CVE-2026-88839 · [email protected]https://bugzilla.redhat.com/show_bug.cgi?id=2531353 · [email protected]
EPSS history
Timeline
  • 25 SEP 03:28Z
    EPSS moved — → 0%
    epss
  • 23 SEP 17:45Z
    Busybox: busybox: passwd/group parser writes heap pointers out of bounds due to stale tokenize() endpoint
    cvelistv5