Vulnerability details
CVE-2026-0647
Rockwell Automation FLEX I/O EtherNet/IP Adapters
Rockwell Automation FLEX I/O Dual-port EtherNet/IP Adapters – Multiple Vulnerabilities
CVSS 4.0
8.8High
Official description
An improper authentication security issue exists within the 1794-AENTR adapter's embedded web server. The vulnerability allows an unauthenticated attacker to change the device's web interface password by sending a crafted HTTP GET request to a specific endpoint, without any prior authentication being required. If exploited, this could lead to unauthorized access, account takeover, and loss of the device’s embedded web server’s availability.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.8High | 4.0 | CVEProject cvelistV5 (CNA) (Rockwell) | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Rockwell Automation | FLEX I/O EtherNet/IP Adapters | 2.012 | CVEProject cvelistV5 (CNA) |
References and advisories
1
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Details
- Published
- 2026-06-16
- Last updated
- 2026-06-16
- State
- Published
- Assigner (CNA)
- Rockwell
Exploit prediction (EPSS)
0.43%
Probability of exploitation in 30 days
37.9%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-306Missing Authentication for Critical Function