What is CVE-2021-20791?

CVE-2021-20791 is a critical-severity vulnerability in Jscom Revoworks Browser. CVSS score: 9.3/10. Published 2021-09-17.

How severe is CVE-2021-20791?

Critical severity. CVSS v3 base score is 9.3 out of 10.

Vulnerability in Jscom Revoworks Browser

CVE-2021-20791

Improper access control vulnerability in RevoWorks Browser 2.1.230 and earlier allows an attacker to bypass access restriction and to exchange unauthorized files between the local environment and the isolated environment or settings of the web browser via unspecified vectors.

EPSS: 0.008 (54.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.3 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N.

Affected products

Jscom Revoworks_browser
J’s Communication Co., Ltd. Revoworks Browser — versions 2.1.230 and earlier

References

vultures@jpcert.or.jp (x_refsource_MISC, Vendor Advisory)
vultures@jpcert.or.jp (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-20791?: CVE-2021-20791 is a critical-severity vulnerability in Jscom Revoworks Browser. CVSS score: 9.3/10. Published 2021-09-17.
How severe is CVE-2021-20791?: Critical severity. CVSS v3 base score is 9.3 out of 10.