CVE-2021-20284

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

1.28% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 69.7% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

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

Red Hat severity

Low. Red Hat's rating for its own products, not a CVSS rating.

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

2021-03-26 16:39Z5 YR AGO

Last updated

2024-08-03 17:37Z2 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-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
• CWE-787Out-of-bounds WriteBase

Data version

5.1

Document digest

5c5cf51cd876d4729dae19e891ca8e839355bb351ab18e23045e7d6ab7ffeaf5

• sourceware.orghttps://sourceware.org/bugzilla/show_bug.cgi?id=26931x_refsource_MISC
• bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1937784x_refsource_MISC
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20210521-0010/x_refsource_CONFIRM
• security.gentoo.orgGLSA-202208-30https://security.gentoo.org/glsa/202208-30vendor-advisoryx_refsource_GENTOO