How severe is CVE-2021-3101?

CVE-2021-3101 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-3101 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-3101?

CVE-2021-3101 affects Hotdog Project Hotdog. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-3101?

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-2021-3101 published?

CVE-2021-3101 was published on 2022-04-19 and last updated on 2026-06-17.

CVE-2021-3101

CVE-2021-3101 is a high-severity vulnerability in Hotdog Project Hotdog 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-269.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 7.2
EPSS exploit prediction: 0% (30th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-269
Affected product: Hotdog Project Hotdog
Published: 2022-04-19
Last modified: 2026-06-17

Description

Hotdog, prior to v1.0.1, did not mimic the capabilities or the SELinux label of the target JVM process. This would allow a container to gain full privileges on the host, bypassing restrictions set on the container.

Frequently asked questions

What is CVE-2021-3101?: Hotdog, prior to v1.0.1, did not mimic the capabilities or the SELinux label of the target JVM process. This would allow a container to gain full privileges on the host, bypassing restrictions set on the container.
How severe is CVE-2021-3101?: CVE-2021-3101 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-3101 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-3101?: CVE-2021-3101 affects Hotdog Project Hotdog. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-3101?: 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-2021-3101 published?: CVE-2021-3101 was published on 2022-04-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:hotdog_project:hotdog:*:*:*:*:*:java:*:*

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