CVE-2021-20216

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

2.27% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 82.5% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2021-03-25 18:57Z5 YR AGO

Last updated

2024-08-03 17:30Z2 YR AGO

Reserved

2020-12-17

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-400Uncontrolled Resource ConsumptionClass
• CWE-401Missing Release of Memory after Effective LifetimeVariant

Data version

5.1

Document digest

629de4dd25df1b76026a8d10684cf9f03fd13f41b0fdaebbbcffa4ff678fff09

• bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1923256x_refsource_MISC
• www.openwall.comhttps://www.openwall.com/lists/oss-security/2021/01/31/2x_refsource_MISC
• www.privoxy.orghttps://www.privoxy.org/3.0.31/user-manual/whatsnew.htmlx_refsource_MISC
• security.gentoo.orgGLSA-202107-16https://security.gentoo.org/glsa/202107-16vendor-advisoryx_refsource_GENTOO