The Harmony Browse and the SandBlast Agent for Browsers installers must have admin privileges to execute some steps during the installation.

published 2021-10-22 5y ago modified 2026-06-17 4mo ago also EUVD-2021-17290

cvss: 7.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 3.9%; EPSS 3.9% chance of exploitation in 30 days, percentile 90%
public exploits: 0; none known

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.

Patch / fix

fixed in 2

checkpoint harmony_browse 90.08.7405
checkpoint sandblast_agent_for_browsers 90.08.7405

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Exploit prediction

3.93% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	7.2	AV:L/AC:L/Au:N/C:C/I:C/A:C

Affected products

n/a Check Point Harmony Browse and SandBlast Agent for Browsers

Classification

Weakness

CWE-427 Uncontrolled Search Path Element

References

supportcontent.checkpoint.com /solutions?id=sk175968
vendor-advisory
github.com /mandiant/Vulnerability-Disclosures/blob/master/MNDT-2021-0007/MNDT-2021-0007.md
third-party-advisory

Sources

CVE List CVE-2021-30359
NVD CVE-2021-30359

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