CVE-2021-28132: LUCY Security Awareness Software through 4.7.x allows unauthenticated remote code execution because the Migrat

Q: How do I fix CVE-2021-28132?

security awareness: upgrade to newer than 4.7.8. Exact commands for each OS are on this page.

Q: Is CVE-2021-28132 being exploited?

CVE-2021-28132 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-28132 affect?

CVE-2021-28132 affects security awareness. Severity is critical (CVSS 9.8). LUCY Security Awareness Software through 4.7.x allows unauthenticated remote code execution because the Migration Tool (in the Support section) allows upload of .php files within a system.tar.gz file. The .php file becomes accessible with a

Q: How urgent is CVE-2021-28132?

Priority 66/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2021-28132 is a critical-severity flaw (CVSS 9.8) affecting security awareness. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

LUCY Security Awareness Software through 4.7.x allows unauthenticated remote code execution because the Migration Tool (in the Support section) allows upload of .php files within a system.tar.gz file. The .php file becomes accessible with a public/system/static URI.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	3.2% (top 12%)
CISA exploited list	No
Weakness	CWE-78
Published	2021-03-11
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: lucysecurity

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-03-11 07:15 UTCPublished CVE record published
2026-06-17 03:45 UTCUpdated Record last modified

lucysecurity security awareness UPGRADE

Affected: <= 4.7.8

Fixed in: newer than 4.7.8

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy security-awareness || rpm -q security-awareness || security-awareness --version

2. UPGRADE to newer than 4.7.8 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade security-awareness

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade security-awareness

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-28132?

security awareness: upgrade to newer than 4.7.8. Exact commands for each OS are on this page.

Is CVE-2021-28132 being exploited?

CVE-2021-28132 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-28132 affect?

CVE-2021-28132 affects security awareness. Severity is critical (CVSS 9.8). LUCY Security Awareness Software through 4.7.x allows unauthenticated remote code execution because the Migration Tool (in the Support section) allows upload of .php files within a system.tar.gz file. The .php file becomes accessible with a

How urgent is CVE-2021-28132?

Priority 66/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

References

← Back to latest CVEs