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Fencer Vulns
high 7.8

CVE-2021-25319 json

virtualbox: missing sticky bit for /etc/vbox allows local root exploit for members of vboxusers group

published 2021-05-05 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-12216

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 17%
public exploits
0
none known

Summary

A Incorrect Default Permissions vulnerability in the packaging of virtualbox of openSUSE Factory allows local attackers in the vboxusers groupu to escalate to root. This issue affects: openSUSE Factory virtualbox version 6.1.20-1.1 and prior versions.

Patch / fix

  • virtualbox openSUSE Leap 15.3 6.1.22-lp153.2.3.2
  • virtualbox-kmp openSUSE Leap 15.3 6.1.22-lp153.2.3.2
  • virtualbox openSUSE Leap 15.2 6.1.22-lp152.2.24.2
  • virtualbox-kmp openSUSE Leap 15.2 6.1.22-lp152.2.24.2

opensuse advisories openSUSE-SU-2021:0977-1openSUSE-SU-2021:0723-1

Exploit prediction

0.26% chance of exploitation in the next 30 days, higher than 17% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C

Affected products

  • openSUSE Factory

Classification

Weakness
  • CWE-276 Incorrect Default Permissions

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.