What is CVE-2026-88835?

CVE-2026-88835 is a medium-severity vulnerability in Red Hat Hardened Images, classified under Out-of-bounds Read. CVSS score: 6.1/10. Published 2026-09-23.

How severe is CVE-2026-88835?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Out-of-bounds Read in Red Hat Hardened Images

CVE-2026-88835

BusyBox dpkg read_package_field() steps past a NUL terminator on malformed .deb packages, causing an out-of-bounds heap read.

Vulnerability class: Buffer Overflow

Published 2026-09-23 · last modified 2026-09-25.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H.

EPSS exploit prediction

EPSS: 0.001 (1.7th percentile), scored 2026-11-04.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 2nd percentile — 1.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: -0.000

Affected products

Red Hat Hardened Images

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

access.redhat.com/security/cve/CVE-2026-88835 (vdb-entry)
bugzilla.redhat.com/show_bug.cgi (issue-tracking)
access.redhat.com/errata/RHSA-2026:72111 (vendor-advisory)

Frequently asked questions

What is CVE-2026-88835?: CVE-2026-88835 is a medium-severity vulnerability in Red Hat Hardened Images, classified under Out-of-bounds Read. CVSS score: 6.1/10. Published 2026-09-23.
How severe is CVE-2026-88835?: Medium severity. CVSS v3 base score is 6.1 out of 10.