How severe is CVE-2021-36778?

CVE-2021-36778 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2021-36778 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-36778?

CVE-2021-36778 affects Suse Rancher. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-36778?

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

When was CVE-2021-36778 published?

CVE-2021-36778 was published on 2022-05-02 and last updated on 2026-06-17.

CVE-2021-36778

CVE-2021-36778 is a high-severity vulnerability in Suse Rancher with a CVSS 3.x base score of 7.3. 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-863.

Key facts

Severity: High (CVSS 3.x base score 7.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-863
Affected product: Suse Rancher
Published: 2022-05-02
Last modified: 2026-06-17

Description

A Incorrect Authorization vulnerability in SUSE Rancher allows administrators of third-party repositories to gather credentials that are sent to their servers. This issue affects: SUSE Rancher Rancher versions prior to 2.5.12; Rancher versions prior to 2.6.3.

Frequently asked questions

What is CVE-2021-36778?: A Incorrect Authorization vulnerability in SUSE Rancher allows administrators of third-party repositories to gather credentials that are sent to their servers. This issue affects: SUSE Rancher Rancher versions prior to 2.5.12; Rancher versions prior to 2.6.3.
How severe is CVE-2021-36778?: CVE-2021-36778 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2021-36778 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-36778?: CVE-2021-36778 affects Suse Rancher. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-36778?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-36778 published?: CVE-2021-36778 was published on 2022-05-02 and last updated on 2026-06-17.

References

https://bugzilla.suse.com/show_bug.cgi?id=1191466

Affected products (1)

cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:*

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