All vulnerabilities

Servers and applications

CVE-2021-20264

An insecure modification flaw in the /etc/passwd file was found in the openjdk-1.8 and openjdk-11 containers. This flaw allows an attacker with access to the container to modify the /etc/passwd and escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Severity
High 7.8
Published
6 Oct 2021
Last changed
17 Jun 2026
Added to UpHeron
22 Oct 2026
Sources
NVD

Affected software

SoftwareAffected versions
JavaServers and applications · cpe:a:oracle:openjdk
  • Version 1.8.0
  • Version 11

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-20264
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-20264