VulnerabilityModified
CVE-2021-33027
Sylabs Singularity Enterprise through 1.6.2 has Insufficient Entropy in a nonce.
CRITICAL 9.8EPSS 1.29%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.29%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Sylabs Singularity Enterprise through 1.6.2 has Insufficient Entropy in a nonce.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.29% probability · 70th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-331
- Affected
- sylabs/singularity
- Source
- cve@mitre.org
EPSS 1.3% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://medium.com/sylabsThird Party Advisory
- https://support.sylabs.io/a/solutions/articles/42000086439Vendor Advisory
- https://medium.com/sylabsThird Party Advisory
- https://support.sylabs.io/a/solutions/articles/42000086439Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.