CVE-2021-3670

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

2.31% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 83.1% of scored records. A rank, not a probability.

NVD base score

6.5 (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:N/I:N/A:H

NVD analysis status

Analyzed. 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

2022-08-23 15:50Z4 YR AGO

Last updated

2025-02-13 16:28Z1 YR AGO

Reserved

2021-07-30

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-400Uncontrolled Resource ConsumptionClass
• CWE-770Allocation of Resources Without Limits or ThrottlingBase

Data version

5.1

Document digest

33f4b8fd3d9ba77ac323269da2f4c727470609322b0cdc4de933b316e630a739

• bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2077533x_refsource_MISC
• bugzilla.samba.orghttps://bugzilla.samba.org/show_bug.cgi?id=14694x_refsource_MISC
• gitlab.comhttps://gitlab.com/samba-team/samba/-/commit/1d5b155619bc532c46932965b215bd73a920e56fx_refsource_MISC
• gitlab.comhttps://gitlab.com/samba-team/samba/-/commit/dcfcafdbf756e12d9077ad7920eea25478c29f81x_refsource_MISC
• gitlab.comhttps://gitlab.com/samba-team/samba/-/commit/86fe9d48883f87c928bf31ccbd275db420386803x_refsource_MISC
• gitlab.comhttps://gitlab.com/samba-team/samba/-/commit/e1ab0c43629686d1d2c0b0b2bcdc90057a792049x_refsource_MISC
• gitlab.comhttps://gitlab.com/samba-team/samba/-/commit/2b3af3b560c9617a233c131376c870fce146c002x_refsource_MISC
• gitlab.comhttps://gitlab.com/samba-team/samba/-/commit/5f0590362c5c0c5ee20503a67467f9be2d50e73bx_refsource_MISC
• gitlab.comhttps://gitlab.com/samba-team/samba/-/commit/3507e96b3dcf0c0b8eff7b2c08ffccaf0812a393x_refsource_MISC
• security.gentoo.orghttps://security.gentoo.org/glsa/202309-06