Directory Processing Vulnerability in libfsimage's ISO9660 Driver Affects Xen Project
CVE-2026-62425

5.5MEDIUM

Key Information:

Vendor

Xen Project
Status
Xen Project
Vendor
CVE Published:
28 July 2026

What is CVE-2026-62425?

The libfsimage ISO9660 driver contains a vulnerability where it derives lengths from attacker-controlled on-disk fields without proper validation. This flaw can lead to erroneous assumptions about record lengths in various processing tasks, creating potential security risks. Specifically, the processing of the Rock Ridge NM and CE records does not verify the integrity of entry sizes and offsets, allowing an attacker to exploit these weaknesses. This could result in unexpected behaviors or system compromise.

Affected Version(s)

Xen consult Xen advisory XSA-497

References

https://xenbits.xenproject.org/xsa/advisory-497.html

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

This issue was discovered by Syed Abdul Khaliq of BugQore.
.