CVE-2021-39965.5MediumCWE-552

CVE-2021-3996: Kernel util-linux vulnerability

Kernel · util-linux

Vendor fix available · Affected: Kernel util-linux · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.6%probability of exploitation in the next 30 days

51st percentile

050100

Higher than 51% of scored CVEs

5.5MediumCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

A logic error was found in the libmount library of util-linux in the function that allows an unprivileged user to unmount a FUSE filesystem. This flaw allows a local user on a vulnerable system to unmount other users' filesystems that are either world-writable themselves (like /tmp) or mounted in a world-writable directory. An attacker may use this flaw to cause a denial of service to applications that use the affected filesystems.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

util-linuxFixed in util-linux v2.37.3

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Files or Directories Accessible to External Parties · File and Path Handling
Vendor: Kernel
Published: August 2022
Band: Unlikely (under 1%), August 2022

CoverageNo articles yet

No CyberSIXT article names CVE-2021-3996 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.