Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2021-33542

22
FAUCET Score

CVE-2021-33542 is a remote code execution vulnerability affecting Phoenix Contact Classic Automation Worx Software Suite versions 1.87 and below, specifically PC Worx, Config+, and PC Worx Express. It allows an attacker to achieve remote code execution on an application programming workstation by manipulating a bus configuration file (*.bcp) and replacing the original. This vulnerability has a CVSS score of 7.0 (High), indicating a local attack vector with high attack complexity, requiring user interaction, but leading to high impacts on confidentiality, integrity, and availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.87CPE matchmatch criteria
cpe:2.3:a:phoenixcontact:config\+:*:*:*:*:*:*:*:*
<= 1.87CPE matchmatch criteria
cpe:2.3:a:phoenixcontact:pc_worx:*:*:*:*:*:*:*:*
<= 1.87CPE matchmatch criteria
cpe:2.3:a:phoenixcontact:pc_worx_express:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.0HIGH

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

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.0
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.76%
Probability of exploitation in next 30 days
EPSS Percentile
75.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0176 is in the 87th percentile among its peer group of 386 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cert.vde.com / en-us/advisories/vde-2021-020
Third Party Advisory
zerodayinitiative.com / advisories/ZDI-21-782
Third Party AdvisoryVDB Entry