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© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2021-45966

26
FAUCET Score

CVE-2021-45966 is a critical remote code execution vulnerability affecting Pascom Cloud Phone System versions prior to 7.20.x. This flaw, rated 9.8 CVSS, allows unauthenticated attackers to execute arbitrary code by injecting shell metacharacters into the /services/apply endpoint of the management REST API. While the vulnerability has a high EPSS score and FAUCET Risk Score, indicating potential for exploitation, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 7.19CPE matchmatch criteria
cpe:2.3:a:pascom:cloud_phone_system:*:*:*:*:*:*:*:*

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
5.62%
Probability of exploitation in next 30 days
EPSS Percentile
92.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0562 is in the 86th percentile among its peer group of 36,835 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

kerbit.io / research/read/blog/4
ExploitThird Party Advisory
tutorialboy24.blogspot.com / 2022/03/the-story-of-3-bugs-that-lead-to.html
ExploitThird Party Advisory
pascom.net / doc/en/release-notes
Release NotesVendor Advisory