Medium 6.1Published Sep 23, 2026

CVE-2026-88835Busybox: busybox: dpkg read_package_field() steps past nul terminator, causing out-of-bounds read on malformed .deb packages

Updated under an hour ago (2026-10-19 07:23 UTC)

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It affects Red Hat Hardened Images. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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

CVSS: 6.1 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Weakness (CWE): CWE-125
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: redhat
NVD analysis: Awaiting Analysis
Record last updated: Sep 25, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Red Hat Red Hat Hardened Images redhat:hummingbird	from 1.37.0-9.1.hum1 not affected	CNA record

References

https://access.redhat.com/errata/RHSA-2026:72111vendor-advisory, x-refsource-redhat
https://access.redhat.com/security/cve/CVE-2026-88835vdb-entry, x-refsource-redhat
https://bugzilla.redhat.com/show_bug.cgi?id=2531349issue-tracking, x-refsource-redhat

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.