Is CVE-2021-33027 in the CISA KEV catalog?

No. CVE-2021-33027 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-33027?

CVE-2021-33027 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2021-33027?

CVE-2021-33027 has an EPSS score of 1.32% (67th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-33027?

Upgrade singularity to 1.6.3 or later.

CVE & CISA-KEV Catalog

CVE-2021-33027

CRITICAL

9.8

CVSS v3

NVD

Description

Sylabs Singularity Enterprise through 1.6.2 has Insufficient Entropy in a nonce.

CWE-331

How to fix

Remediation Available

singularityNVD

Affected:>= 1.6.0, < 1.6.3Fixed in:1.6.3CVE-2021-33027derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

1.32%probability of exploitation in 30 days

67thpercentile

Moderate risk: more likely to be exploited than 67% of all known CVEs.

References

Vendor Advisory1

support.sylabs.io

Third-Party Advisory1

medium.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.