SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2017-14468

An exploitable access control vulnerability exists in the data, program, and function file permissions functionality of Allen Bradley Micrologix 1400 Series B FRN 21.2 and before.

CRITICAL 9.8EPSS 38.0%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 38.0%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.

Description

An exploitable access control vulnerability exists in the data, program, and function file permissions functionality of Allen Bradley Micrologix 1400 Series B FRN 21.2 and before. A specially crafted packet can cause a read or write operation resulting in disclosure of sensitive information, modification of settings, or modification of ladder logic. An attacker can send unauthenticated packets to trigger this vulnerability. Required Keyswitch State: REMOTE or PROG Description: This ability is leveraged in a larger exploit to flash custom firmware.

CVSS 3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
37.96% probability · 99th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Affected
rockwellautomation/micrologix 1400 b firmware
Source
talos-cna@cisco.com
EPSS trend
0%20%40%27 October 2026: 37.96%27 October 202627 October 2026

EPSS 38.0% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.