CVE-2021-3505

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

0.40% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 34.3% 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:L/UI:N/S:U/C:H/I:N/A:N

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

2021-04-19 20:22Z5 YR AGO

Last updated

2024-08-03 16:53Z2 YR AGO

Reserved

2021-04-16

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-331Insufficient EntropyBase

Data version

5.1

Document digest

bfe38d2170a685a139ef5aca49792876d89e470ed764ff96348df165e5c076a4

• bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1950046x_refsource_MISC
• github.comhttps://github.com/stefanberger/libtpms/issues/183x_refsource_MISC
• lists.fedoraproject.orgFEDORA-2021-cfdc434610https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NUCZX4S53TUNTSGTCRDNOQZV2V2RI4RJ/vendor-advisoryx_refsource_FEDORA