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CVE-2023-6448: Unitronics Vision PLC and HMI Insecure Default Password Vulnerability

criticalknown exploitedCVE-2023-6448
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Unitronics Vision Series PLCs and HMIs ship with an insecure default password, which if left unchanged, can allow attackers to execute remote commands.

CSIRTS triage

vendor: Unitronicsproduct: Vision Series PLCs and HMIsAuthentication bypass
What
The devices ship with an insecure default password that can allow attackers to execute remote commands if unchanged.
Who is affected
Users of Unitronics Vision Series PLCs and HMIs are affected if they do not change the default password.
Urgency
Immediate action is required as the vulnerability is actively exploited and is critical in severity.
Action
Change the default password on all affected devices.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2023-12-11
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2023-6448

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2023-6448coverage & exploitation statusNVD · CVE.org

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