CVE-2021-46705

Public Exploit
grub2-once uses fixed file name in /var/tmp

Description

A Insecure Temporary File vulnerability in grub-once of grub2 in SUSE Linux Enterprise Server 15 SP4, openSUSE Factory allows local attackers to truncate arbitrary files. This issue affects: SUSE Linux Enterprise Server 15 SP4 grub2 versions prior to 2.06-150400.7.1. SUSE openSUSE Factory grub2 versions prior to 2.06-18.1.

Category

5.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.04%
Vendor Advisory suse.com
Affected: SUSE SUSE Linux Enterprise Server 15 SP4
Affected: SUSE openSUSE Factory
Published at:
Updated at:

References

Link Tags
https://bugzilla.suse.com/show_bug.cgi?id=1190474 vendor advisory issue tracking exploit

Frequently Asked Questions

What is the severity of CVE-2021-46705?
CVE-2021-46705 has been scored as a medium severity vulnerability.
How to fix CVE-2021-46705?
To fix CVE-2021-46705, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-46705 being actively exploited in the wild?
It is possible that CVE-2021-46705 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-46705?
CVE-2021-46705 affects SUSE SUSE Linux Enterprise Server 15 SP4, SUSE openSUSE Factory.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.