How severe is CVE-2021-3837?

CVE-2021-3837 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-3837 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-3837?

CVE-2021-3837 affects Openwhyd. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-3837?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-3837 published?

CVE-2021-3837 was published on 2022-01-03 and last updated on 2026-06-17.

CVE-2021-3837

CVE-2021-3837 is a medium-severity vulnerability in Openwhyd with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-285.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-285
Affected product: Openwhyd
Published: 2022-01-03
Last modified: 2026-06-17

Description

openwhyd is vulnerable to Improper Authorization

Frequently asked questions

What is CVE-2021-3837?: openwhyd is vulnerable to Improper Authorization
How severe is CVE-2021-3837?: CVE-2021-3837 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-3837 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-3837?: CVE-2021-3837 affects Openwhyd. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-3837?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-3837 published?: CVE-2021-3837 was published on 2022-01-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:openwhyd:openwhyd:*:*:*:*:*:*:*:*

More vulnerabilities in Openwhyd

CVE-2021-3829 — Medium (CVSS 6.1): openwhyd is vulnerable to URL Redirection to Untrusted Site

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CVE-2026-5412 — Critical (CVSS 9.9): In Juju versions prior to 2.9.57 and 3.6.21, an authorization issue exists in the Controller facade. An authenticated…

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