Is CVE-2021-30359 in the CISA KEV catalog?

No. CVE-2021-30359 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-30359?

CVE-2021-30359 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2021-30359?

CVE-2021-30359 has an EPSS score of 3.93% (89th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-30359?

Upgrade harmony browse to 90.08.7405 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2021-30359

HIGHEPSS 89th pctl

7.8

CVSS v3

NVD

Description

The Harmony Browse and the SandBlast Agent for Browsers installers must have admin privileges to execute some steps during the installation. Because the MS Installer allows regular users to repair their installation, an attacker running an installer before 90.08.7405 can start the installation repair and place a specially crafted binary in the repair folder, which runs with the admin privileges.

CWE-427

How to fix

Remediation Available

harmony browseNVD

Affected:< 90.08.7405Fixed in:90.08.7405CVE-2021-30359derived from NVD

sandblast agent for browsersNVD

Affected:< 90.08.7405Fixed in:90.08.7405CVE-2021-30359derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

3.93%probability of exploitation in 30 days

89thpercentile

Elevated risk: more likely to be exploited than 89% of all known CVEs.

References

Vendor Advisory1

supportcontent.checkpoint.com

Third-Party Advisory1

github.com

Embed a live status badge for CVE-2021-30359

Markdown

[![CVE-2021-30359](https://tridentstack.com/cve/badge/CVE-2021-30359.svg)](https://tridentstack.com/cve/CVE-2021-30359)

HTML

<a href="https://tridentstack.com/cve/CVE-2021-30359"><img src="https://tridentstack.com/cve/badge/CVE-2021-30359.svg" alt="CVE-2021-30359"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.