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CVE-2021-36668

27
FAUCET Score

CVE-2021-36668 describes a URL injection vulnerability in Druva inSync Client 6.9.0 for macOS, allowing an attacker to force the Electron application to visit an arbitrary URL through manipulation of the 'port' parameter. This vulnerability carries a high CVSS score of 7.8, indicating a significant impact with high confidentiality, integrity, and availability concerns, though it requires local access and low privileges. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.9.3CPE matchmatch criteria
cpe:2.3:a:druva:insync_client:*:*:*:*:*:linux:*:*
< 7.0.1CPE matchmatch criteria
cpe:2.3:a:druva:insync_client:*:*:*:*:*:macos:*:*
< 7.0.1CPE matchmatch criteria
cpe:2.3:a:druva:insync_client:*:*:*:*:*:windows:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.57%
Probability of exploitation in next 30 days
EPSS Percentile
43.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0057 is in the 83rd percentile among its peer group of 16,994 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 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

docs.druva.com / Knowledge_Base/Security_Update/Security_Advisory_for_inSync_Client_7.0.1_and_before
Vendor Advisory
imhotepisinvisible.com / druva-lpe
ExploitPatchTechnical DescriptionThird Party Advisory