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CVE-2021-27473

25
FAUCET Score

CVE-2021-27473 is a Zip Slip vulnerability affecting Rockwell Automation Connected Components Workbench v12.00.00 and earlier, where improper path sanitization during archive extraction allows for arbitrary file write. This high-severity vulnerability (CVSS 8.2) requires local, authenticated access and user interaction to exploit, potentially leading to system-level privilege escalation if the software is running with elevated permissions. Despite its significant impact, there is no evidence of active exploitation, public exploit code, or notable community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 12.00.00CPE matchmatch criteria
cpe:2.3:a:rockwellautomation:connected_components_workbench:*:*:*:*:*:*:*:*
<= v12.00.00CPE match
cpe:2.3:a:rockwellautomation:connected_components_workbench:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
1.8
Impact Score
3.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.77%
Probability of exploitation in next 30 days
EPSS Percentile
51.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0077 is in the 78th percentile among its peer group of 759 CVEs.

Social Chatter

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

rockwellautomation.custhelp.com / app/answers/answer_view/a_id/1131435
Permissions RequiredVendor Advisory
cisa.gov / uscert/ics/advisories/icsa-21-133-01
Third Party AdvisoryUS Government Resource