CVE-2026-25701
openSUSE sdbootutil Temporary File Insecure Directory Creation Vulnerability
Description
An Insecure Temporary File vulnerability in openSUSE sdbootutil allows local users to pre-create a directory to achieve various effects like: * gain access to possible private information found in /var/lib/pcrlock.d * manipulate the data backed up in /tmp/pcrlock.d.bak, therefore violating the integrity of the data should it be restored. * overwrite protected system files with data from /var/lib/pcrlock.d by placing symlinks to existing files in the directory tree in /tmp/pcrlock.d.bak. This issue affects sdbootutil: from ? before 5880246d3a02642dc68f5c8cb474bf63cdb56bca.
INFO
Published Date :
Feb. 25, 2026, 12:16 p.m.
Last Modified :
Feb. 25, 2026, 2:15 p.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-25701
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | HIGH | 404e59f5-483d-4b8a-8e7a-e67604dd8afb | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update sdbootutil to version 5880246d3a02642dc68f5c8cb474bf63cdb56bca or later.
- Apply vendor patches for sdbootutil.
- Review and secure temporary file creation processes.
- Limit permissions on temporary directories.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-25701.
| URL | Resource |
|---|---|
| https://bugzilla.suse.com/show_bug.cgi?id=1258241 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-25701 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-25701
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-25701 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-25701 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Feb. 25, 2026
Action Type Old Value New Value Added Description An Insecure Temporary File vulnerability in openSUSE sdbootutil allows local users to pre-create a directory to achieve various effects like: * gain access to possible private information found in /var/lib/pcrlock.d * manipulate the data backed up in /tmp/pcrlock.d.bak, therefore violating the integrity of the data should it be restored. * overwrite protected system files with data from /var/lib/pcrlock.d by placing symlinks to existing files in the directory tree in /tmp/pcrlock.d.bak. This issue affects sdbootutil: from ? before 5880246d3a02642dc68f5c8cb474bf63cdb56bca. Added CVSS V4.0 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 Added CWE CWE-377 Added Reference https://bugzilla.suse.com/show_bug.cgi?id=1258241