Detections
Analytics

CVE-2021-3899

high

Description

There is a race condition in the 'replaced executable' detection that, with the correct local configuration, allow an attacker to execute arbitrary code as root.

References

https://www.cve.org/CVERecord?id=CVE-2021-3899

https://ubuntu.com/security/notices/USN-5427-1

https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1948376

Details

Source: Mitre, NVD

Published: 2024-06-03

Updated: 2025-08-26

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.04485