CVE-2026-88835 Memory corruption in Red Hat Hardened Images
An out-of-bounds read in BusyBox dpkg allows attackers to cause denial of service or disclose memory contents via malformed .deb packages.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-88835?
CVE-2026-88835 is a medium-severity memory corruption vulnerability in Red Hat Hardened Images, published on 23 Sep 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
BusyBox dpkg read_package_field() steps past a NUL terminator on malformed .deb packages, causing an out-of-bounds heap read.
Weakness: CWE-125
Which versions are affected by CVE-2026-88835?
How do I fix CVE-2026-88835?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-88835 being exploited?
There is no known exploitation of CVE-2026-88835 in the wild and no public exploit code.
Sources
Also known as AZL-106740, DEBIAN-CVE-2026-88835, ECHO-8915-7bd5-c39b, GHSA-263v-w343-472x, UBUNTU-CVE-2026-88835.