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01 Record

CVE-2021-34426

Arbitrary command execution in Keybase Client for Windows

MediumPUBLISHEDCNA: Zoom
CNA base score5.3 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

02 Description

Arbitrary command execution in Keybase Client for Windows

03 Exploitation and scoring

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
0.24% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 15.7% of scored records. A rank, not a probability.
NVD base score
7.8 (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: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.

04 Metadata

Published
2021-12-14 19:26Z4 YR AGO
Last updated
2024-09-17 04:09Z2 YR AGO
Reserved
2021-06-09
Assigning CNA
Zoom
Record state
PUBLISHED
Severity
Medium (CVSS 5.3)
CNA CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Weaknesses
No CWE assigned
Data version
5.1
Document digest
822a3c03974f7a3f82f467e0a64df969cada2e6aade7de30358f11b658617f2a

05 Affected products

VendorProductVersionsPlatforms
Zoom Video Communications IncKeybase Client for Windows< 5.6.0—

06 References