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CVE-2023-6448

71
FAUCET Score

CVE-2023-6448 is a critical vulnerability affecting Unitronics VisiLogic software, used in Vision and Samba PLCs and HMIs, due to the use of a default administrative password. This allows an unauthenticated attacker with network access to gain full administrative control over vulnerable systems. With a CVSS score of 9.8 (CRITICAL), the vulnerability is easily exploitable remotely with no user interaction, leading to complete compromise of confidentiality, integrity, and availability. This CVE is actively exploited (KEV), has a high FAUCET Risk Score of 99/100, and has garnered significant community discussion and media coverage, despite no public Metasploit or ExploitDB modules.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0, < 9.9.00CPE match
cpe:2.3:a:unitronics:visilogic:*:*:*:*:*:*:*:*
< 12.38CPE matchmatch criteria
cpe:2.3:o:unitronics:vision1210_firmware:*:*:*:*:*:*:*:*
< 12.38CPE matchmatch criteria
cpe:2.3:o:unitronics:vision1040_firmware:*:*:*:*:*:*:*:*
< 12.38CPE matchmatch criteria
cpe:2.3:o:unitronics:vision700_firmware:*:*:*:*:*:*:*:*
< 12.38CPE matchmatch criteria
cpe:2.3:o:unitronics:vision570_firmware:*:*:*:*:*:*:*:*

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
2.09%
Probability of exploitation in next 30 days
EPSS Percentile
79.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Added to KEV · Dec 11, 2023
This CVE's current EPSS score of 0.0209 is in the 69th percentile among its peer group of 36,833 CVEs.

Social Chatter

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

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

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
downloads.unitronicsplc.com / Sites/plc/Technical_Library/Unitronics-Cybersecurity-Advisory-2023-001-CVE-2023-6448.pdf
Vendor Advisory
downloads.unitronicsplc.com / Sites/plc/Visilogic/Version_Changes-Bug_Reports/VisiLogic%209.9.00%20Version%20changes.pdf
Release Notes
cisa.gov / news-events/alerts/2023/11/28/exploitation-unitronics-plcs-used-water-and-wastewater-systems
Third Party AdvisoryUS Government Resource
unitronicsplc.com / cyber_security_vision-samba
Product