How severe is CVE-2021-34679?

CVE-2021-34679 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-34679 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-34679?

CVE-2021-34679 affects Thycotic Password Reset Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-34679?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2021-34679 published?

CVE-2021-34679 was published on 2021-06-11 and last updated on 2026-06-17.

CVE-2021-34679

CVE-2021-34679 is a critical-severity vulnerability in Thycotic Password Reset Server with a CVSS 3.x base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 3.x base score 10.0)
CVSS v2: 5.0
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Thycotic Password Reset Server
Published: 2021-06-11
Last modified: 2026-06-17

Description

Thycotic Password Reset Server before 5.3.0 allows credential disclosure.

Frequently asked questions

What is CVE-2021-34679?: Thycotic Password Reset Server before 5.3.0 allows credential disclosure.
How severe is CVE-2021-34679?: CVE-2021-34679 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-34679 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-34679?: CVE-2021-34679 affects Thycotic Password Reset Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-34679?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-34679 published?: CVE-2021-34679 was published on 2021-06-11 and last updated on 2026-06-17.

References

https://docs.thycotic.com/prs/5.3.0/release-notes/5.3.0.md

Affected products (1)

cpe:2.3:a:thycotic:password_reset_server:*:*:*:*:*:*:*:*