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CVE-2021-36356

78
FAUCET Score

CVE-2021-36356 is a critical remote code execution (RCE) vulnerability affecting KRAMER VIAware products through August 2021. It stems from an incomplete fix for a previous vulnerability, allowing attackers to execute arbitrary code by manipulating file paths in ajaxPages/writeBrowseFilePathAjax.php. With a CVSS score of 9.8 (Critical) and an EPSS score indicating high exploitability, this vulnerability presents a significant risk due to its network-based attack vector, low attack complexity, and complete compromise potential (confidentiality, integrity, availability). While not on the CISA KEV catalog or actively exploited in the wild, public exploit code exists in ExploitDB and Nuclei templates, indicating a high likelihood of future exploitation. Despite its severity, there is minimal community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2021-08CPE matchmatch criteria
cpe:2.3:a:kramerav:viaware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
54.39%
Probability of exploitation in next 30 days
EPSS Percentile
98.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Nuclei: CVE-2021-36356 · Apr 30, 2022
ExploitDB: EDB-50856 · Apr 7, 2022
This CVE's current EPSS score of 0.5439 is in the 97th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/166623/Kramer-VIAware-Remote-Code-Execution.html
ExploitThird Party AdvisoryVDB Entry
write-up.github.io / kramerav
Third Party Advisory