5.1

CVE-2021-46705: gnu grub2 Insecure Temporary File

CVSS: 5.1v3.1MediumModified
AliasesopenSUSE-SU-2024:11926-1
Published 16-03-2022Last modified 16-09-2024
Open JSON

Vulnerability summary

CVE-2021-46705 is a medium (CVSS 5.1) Insecure Temporary File vulnerability in gnu grub2. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.1/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.24%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 16-03-2022
    PublishedVulnerability first disclosed.
  2. 16-09-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

14%

Versus all other CVEs

30-day change

0.00 pp

From 0.24% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.24%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (bugzilla.suse.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Suse2 products
Gnu1 product
  • grub2< 2.06-150400.7.1 | < 2.06-18.1
Opensuse1 product
  • grub2&distro=openSUSE Tumbleweed< 2.06-18.1

3 vendors · 4 products

References

2 links