CVE-2021-38173

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

3.16% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 86.8% of scored records. A rank, not a probability.

NVD base score

9.8 (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:H/I:H/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

2021-08-07 18:58Z5 YR AGO

Last updated

2024-08-04 01:37Z2 YR AGO

Reserved

2021-08-07

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')Class

Data version

5.1

Document digest

ad94b18784e9dc0147a070a38bb1c968af2cc0649bf6e423cd7263104dbe3a0a

• github.comhttps://github.com/digint/btrbk/commit/58212de771c381cd4fa05625927080bf264e9584x_refsource_MISC
• github.comhttps://github.com/digint/btrbk/blob/master/ChangeLogx_refsource_CONFIRM
• lists.debian.org[debian-lts-announce] 20210905 [SECURITY] [DLA 2755-1] btrbk security updatehttps://lists.debian.org/debian-lts-announce/2021/09/msg00002.htmlmailing-listx_refsource_MLIST
• lists.fedoraproject.orgFEDORA-2022-dc62389784https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LM7GLTUN5YS4KE2RNBX732EAMVVGNEX3/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2022-a66734e7a2https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BP2T32JMENJFRP2HWXR7FTTZVRTTPECL/vendor-advisoryx_refsource_FEDORA