CVE-2021-3571

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

1.89% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 79.4% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

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

Red Hat severity

Moderate. 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

2021-07-09 10:33Z5 YR AGO

Last updated

2024-08-03 17:01Z2 YR AGO

Reserved

2021-05-31

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-125Out-of-bounds ReadBase

Data version

5.1

Document digest

6cbf02c818528e5a68d51adfd995e9e9d108a4ef0c4c12f97e7e3f6f9f7904f0

• bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1966241x_refsource_MISC
• lists.fedoraproject.orgFEDORA-2021-1b42c2f458https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUBKTRCMJ6VKS7DIBSZQB4ATSKVCJYXJ/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2021-a5b584004chttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RHRUVSDP673LXJ5HGIPQPWPIYUPWYQA7/vendor-advisoryx_refsource_FEDORA