HOMEVULNERABILITIESCVE-2023-6448
HIGHCISA KEVIN THE WILD

CVE-2023-6448

Published: December 11, 2023

EPSS:13.29%probability of exploitation in 30 daysPercentile:94.0th

Official Description

Unitronics Vision Series PLCs and HMIs ship with an insecure default password, which if left unchanged, can allow attackers to execute remote commands.

NVD Source

CISA KEV Advisory

Unitronics Vision PLC and HMI Insecure Default Password Vulnerability

Unitronics Vision Series PLCs and HMIs ship with an insecure default password, which if left unchanged, can allow attackers to execute remote commands.

Added to KEV: 2023-12-11Federal patch deadline: 2023-12-18
Required Action (CISA)

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Risk Analysis

This high-severity vulnerability in Unitronics Vision Series PLCs and HMIs stems from an insecure default password, which if not changed, allows remote command execution. The high EPSS score of 0.13290 indicates a significant likelihood of exploitation, making this an urgent concern. This vulnerability is confirmed to be actively exploited in the wild.

Active exploitation of this vulnerability has been observed in the wild, and it is included in CISA's KEV catalog. The ability to execute remote commands due to default credentials makes it a critical target.

Recommended Action

Change the default passwords on all Unitronics Vision Series PLCs and HMIs immediately. Implement strong, unique passwords and consider network segmentation for these critical devices.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-6448 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2023-6448 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.

Exploit & PoC Resources

ACTIVE EXPLOITATIONConfirmed exploitation in the wild
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All References (1)

Quick Facts

CVE IDCVE-2023-6448
SeverityHIGH
CISA KEVYES — Active Exploitation
ExploitIN THE WILD
EPSS (30d)13.29%
PublishedDec 11, 2023

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2023-6448 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
  • !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
  • !Active exploitation confirmed — treat as P1
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.