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CVE-2021-20791

CRITICALCVSS 9.3/10EPSS 0.81%

Last modified

CVE-2021-20791 is a critical-severity vulnerability rated 9.3/10 on the CVSS scale. 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 estimates a 0.81% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
9.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N

EPSS Probability
0.81%

52.4th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
JscomRevoworks Browser>= 2.1.197, <= 2.1.230

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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.
How severe is CVE-2021-20791?
CVE-2021-20791 has a CVSS score of 9.3/10 (CRITICAL severity). The EPSS model estimates a 0.81% probability of exploitation in the next 30 days.
How do I fix CVE-2021-20791?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-20791?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST