Is CVE-2021-36356 actively exploited?

Yes. CVE-2021-36356 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2021-36356 be exploited remotely?

The attack vector of CVE-2021-36356 has not been classified yet.

What is the CVSS score of CVE-2021-36356?

CVE-2021-36356 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2021-36356

UNKNOWNCISA KEVIN THE WILD

CVE-2021-36356

Published: April 11, 2026

EPSS:93.00%probability of exploitation in 30 daysPercentile:99.8th

Official Description

KRAMER VIAware through August 2021 allows remote attackers to execute arbitrary code because ajaxPages/writeBrowseFilePathAjax.php accepts arbitrary executable pathnames (even though browseSystemFiles.php is no longer reachable via the GUI). NOTE: this issue exists because of an incomplete fix for CVE-2019-17124.

NVD Source

Technical Analysis

CVE-2021-36356 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2021-36356 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.