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01 Record

CVE-2021-20790

Improper control of program execution vulnerability in RevoWorks Browser 2.1.230 and earlier allows an attacker to execute an arbitrary command or code via unspecified vectors.

UnratedPUBLISHEDCNA: jpcert
CNA base scoreUnratedNo CNA CVSS vector

02 Description

Improper control of program execution vulnerability in RevoWorks Browser 2.1.230 and earlier allows an attacker to execute an arbitrary command or code via unspecified vectors.

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
1.26% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 69.2% of scored records. A rank, not a probability.
NVD base score
9.6 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/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
2021-09-17 01:40Z5 YR AGO
Last updated
2024-08-03 17:53Z2 YR AGO
Reserved
2020-12-17
Assigning CNA
jpcert
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
No CWE assigned
Data version
5.1
Document digest
f68310f8a46beb12ef5dc9f850f636dbba7c3a36d780a5f7ee89e65392a4ce9b

05 Affected products

VendorProductVersionsPlatforms
J’s Communication Co., Ltd.RevoWorks Browser2.1.230 and earlier—

06 References