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CVE-2021-27505

25
FAUCET Score

CVE-2021-27505 describes a directory listing vulnerability in mySCADA myPRO versions prior to 8.20.0, allowing unauthorized read access to sensitive information. This vulnerability carries a high CVSS score of 7.5, indicating it can be exploited remotely with low complexity and no user interaction, potentially leading to significant information disclosure. While the EPSS score is low, suggesting limited real-world exploitation, there is currently no public exploit code available, nor is there evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
< 8.20.0CPE matchmatch criteria
cpe:2.3:a:myscada:mypro:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.00%
Probability of exploitation in next 30 days
EPSS Percentile
59.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0100 is in the 35th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cisa.gov / uscert/ics/advisories/icsa-21-217-03
Third Party AdvisoryUS Government Resource
myscada.org / version-8-20-0-released-security-update
Release NotesVendor Advisory