CVE-2021-34555

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

2.75% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 84.9% 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

2021-06-10 14:56Z5 YR AGO

Last updated

2024-08-04 00:12Z2 YR AGO

Reserved

2021-06-10

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-476NULL Pointer DereferenceBase

Data version

5.1

Document digest

e217f63816252540d5f6a553516049ff5bdcf6438aa8306de30fab1324e53692

• github.comhttps://github.com/trusteddomainproject/OpenDMARC/issues/179x_refsource_MISC
• github.comhttps://github.com/trusteddomainproject/OpenDMARC/pull/178x_refsource_MISC
• lists.fedoraproject.orgFEDORA-2021-889af802f2https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VZHZD4WZDYRBB2XVW2EQ4DQ2KYMAGPUO/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2021-0c98725795https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2MAT4ZSWPQ5SUTMYCXRXI5SMTWL4AG7E/vendor-advisoryx_refsource_FEDORA