VulnerabilityAwaiting Analysis

CVE-2026-0647

An improper authentication security issue exists within the 1794-AENTR adapter's embedded web server.

HIGH 8.8EPSS 0.43%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.43%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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 4.0: 8.8 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS: 0.43% probability · 37th percentile
CISA KEV: Not listed
Weakness: CWE-306
Source: PSIRT@rockwellautomation.com

References

https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1775.html

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.