PT-2026-21897 · Opensuse · Sdbootutil

Matthias Gerstner · Published 2026-02-25 · Updated 2026-03-04 · CVE-2026-25701

Positive Technologies (AI Summary)

CVSS v4.0

7.0

High

Base vector

AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions openSUSE sdbootutil versions prior to 5880246d3a02642dc68f5c8cb474bf63cdb56bca

Description An insecure temporary file issue exists in openSUSE sdbootutil. A local user can pre-create a directory, potentially gaining access to private information located in /var/lib/pcrlock.d, manipulating data backed up in /tmp/pcrlock.d.bak, and overwriting protected system files with data from /var/lib/pcrlock.d by placing symlinks in /tmp/pcrlock.d.bak. This can violate data integrity if the backed-up data is restored.

Recommendations Update openSUSE sdbootutil to a version after 5880246d3a02642dc68f5c8cb474bf63cdb56bca.

Fix

Weakness Enumeration

CWE-377

Related Identifiers

CVE-2026-25701

OPENSUSE-SU-2026:10287-1

Affected Products

Sdbootutil

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-25701 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2026:10287-1 · Vendor Advisory
• https://bugzilla.suse.com/show_bug.cgi?id=1258241 · Note
• https://suse.com/security/cve/CVE-2026-25701 · Note
• https://twitter.com/CVEnew/status/2026641307196653743 · Twitter Post
• https://t.me/CVEtracker/45727 · Telegram Post