Out-of-Bounds Read Vulnerability in BusyBox Dpkg Affecting Various Linux Distributions
CVE-2026-88835

6.1MEDIUM

Key Information:

Vendor

Red Hat
Status
Red Hat Hardened Images
Vendor
CVE Published:
23 September 2026

What is CVE-2026-88835?

The vulnerability in BusyBox's dpkg component arises from improper handling of malformed .deb packages, where the read_package_field() function inadvertently accesses memory beyond the intended boundaries due to a misstep past a NUL terminator. This flaw can lead to an out-of-bounds heap read, potentially allowing attackers to exploit the underlying memory management and execute unintended actions.

References

https://access.redhat.com/security/cve/CVE-2026-88835
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2531349
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
6.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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