How severe is CVE-2020-24263?

CVE-2020-24263 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-24263 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-24263?

CVE-2020-24263 affects Portainer. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-24263?

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-2020-24263 published?

CVE-2020-24263 was published on 2021-03-16 and last updated on 2026-06-17.

CVE-2020-24263

CVE-2020-24263 is a high-severity vulnerability in Portainer with a CVSS 3.x base score of 8.8. 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-732.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-732
Affected product: Portainer
Published: 2021-03-16
Last modified: 2026-06-17

Description

Portainer 1.24.1 and earlier is affected by an insecure permissions vulnerability that may lead to remote arbitrary code execution. A non-admin user is allowed to spawn new containers with critical capabilities such as SYS_MODULE, which can be used to take over the Docker host.

Frequently asked questions

What is CVE-2020-24263?: Portainer 1.24.1 and earlier is affected by an insecure permissions vulnerability that may lead to remote arbitrary code execution. A non-admin user is allowed to spawn new containers with critical capabilities such as SYS_MODULE, which can be used to take over the Docker host.
How severe is CVE-2020-24263?: CVE-2020-24263 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-24263 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-24263?: CVE-2020-24263 affects Portainer. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-24263?: 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-2020-24263 published?: CVE-2020-24263 was published on 2021-03-16 and last updated on 2026-06-17.

References

https://github.com/portainer/portainer/issues/4105

Affected products (1)

cpe:2.3:a:portainer:portainer:*:*:*:*:*:*:*:*

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