CVE-2021-3623

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

0.32% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 24.8% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:L/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

2022-03-02 22:02Z4 YR AGO

Last updated

2024-08-03 17:01Z2 YR AGO

Reserved

2021-06-28

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-787Out-of-bounds WriteBase

Data version

5.1

Document digest

97cfef6b766dd28b9db659cf05e533cf0afd173c8e1059d76bc213551f4fb9b0

• lists.fedoraproject.orgFEDORA-2021-465b5c3b67https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z7KZSYMTE7Z4BBEZUWO2DIMQDWMGEP46/vendor-advisoryx_refsource_FEDORA
• bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1976806x_refsource_MISC
• github.comhttps://github.com/stefanberger/libtpms/pull/223x_refsource_MISC
• github.comhttps://github.com/stefanberger/libtpms/commit/2f30d62x_refsource_MISC
• github.comhttps://github.com/stefanberger/libtpms/commit/7981d9ax_refsource_MISC
• github.comhttps://github.com/stefanberger/libtpms/commit/2e6173cx_refsource_MISC