Insecure Temporary File Vulnerability in openSUSE sdbootutil
CVE-2026-25701

7HIGH

Key Information:

Vendor

Opensuse
Status
Sdbootutil
Vendor
CVE Published:
25 February 2026

What is CVE-2026-25701?

An Insecure Temporary File vulnerability in openSUSE sdbootutil allows local users to create directories that can lead to unauthorized access to sensitive information in /var/lib/pcrlock.d. This flaw also enables users to manipulate backup data in /tmp/pcrlock.d.bak, potentially compromising the integrity of restored data. Additionally, it permits overwriting protected system files through symlinks in the directory tree, further endangering system security.

Affected Version(s)

sdbootutil ? < 5880246d3a02642dc68f5c8cb474bf63cdb56bca

References

https://bugzilla.suse.com/show_bug.cgi?id=1258241

CVSS V4

Score:
7
Severity:
HIGH
Confidentiality:
Low
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Matthias Gerstner of SUSE
.