How severe is CVE-2021-33634?

CVE-2021-33634 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-33634 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-33634?

CVE-2021-33634 affects Openeuler Icr. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-33634?

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

When was CVE-2021-33634 published?

CVE-2021-33634 was published on 2023-10-29 and last updated on 2026-06-17.

CVE-2021-33634

CVE-2021-33634 is a medium-severity vulnerability in Openeuler Icr with a CVSS 3.x base score of 6.3. 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-665.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-665
Affected product: Openeuler Icr
Published: 2023-10-29
Last modified: 2026-06-17

Description

iSulad uses the lcr+lxc runtime (default) to run malicious images, which can cause DOS.

Frequently asked questions

What is CVE-2021-33634?: iSulad uses the lcr+lxc runtime (default) to run malicious images, which can cause DOS.
How severe is CVE-2021-33634?: CVE-2021-33634 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-33634 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-33634?: CVE-2021-33634 affects Openeuler Icr. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-33634?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-33634 published?: CVE-2021-33634 was published on 2023-10-29 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:openeuler:icr:*:*:*:*:*:*:*:*

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