CVE-2021-34679: Thycotic Password Reset Server before 5.3.0 allows credential disclosure.

Q: How do I fix CVE-2021-34679?

password reset server: upgrade to 5.3.0. Exact commands for each OS are on this page.

Q: Is CVE-2021-34679 being exploited?

CVE-2021-34679 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-2021-34679 affect?

CVE-2021-34679 affects password reset server. Severity is critical (CVSS 10.0). Thycotic Password Reset Server before 5.3.0 allows credential disclosure.

Q: How urgent is CVE-2021-34679?

Priority 56/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 10.0REMOTEUPGRADE

CVE-2021-34679 is a critical-severity flaw (CVSS 10.0) affecting password reset server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Thycotic Password Reset Server before 5.3.0 allows credential disclosure.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	10.0 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.0% (top 37%)
CISA exploited list	No
Published	2021-06-11
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: thycotic

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

Am I affected?

Timeline

2021-06-11 21:15 UTCPublished CVE record published
2026-06-17 03:56 UTCUpdated Record last modified

thycotic password reset server UPGRADE

Affected: < 5.3.0

Fixed in: 5.3.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy password-reset-server || rpm -q password-reset-server || password-reset-server --version

2. UPGRADE to 5.3.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade password-reset-server

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade password-reset-server

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-2021-34679?

password reset server: upgrade to 5.3.0. Exact commands for each OS are on this page.

Is CVE-2021-34679 being exploited?

CVE-2021-34679 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-2021-34679 affect?

CVE-2021-34679 affects password reset server. Severity is critical (CVSS 10.0). Thycotic Password Reset Server before 5.3.0 allows credential disclosure.

How urgent is CVE-2021-34679?

Priority 56/100. Critical severity; Remotely exploitable, no login, no user action

References

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