Heap Buffer Overflow in BusyBox Affects Multiple Images and System Operations
CVE-2026-88832

7.3HIGH

Key Information:

Vendor

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

What is CVE-2026-88832?

The BusyBox romfs volume ID parsing mechanism is susceptible to a heap buffer overflow due to unbounded string length evaluation on attacker-controlled metadata. When processing specially crafted filesystem images, this vulnerability can lead to unauthorized memory manipulation, potentially allowing an attacker to execute arbitrary code or crash affected systems. Proper input validation and stringent checks are crucial to mitigating this security risk.

References

https://access.redhat.com/security/cve/CVE-2026-88832
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2531345
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
7.3
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.