CVE-2012-6437

CRITICAL

CVSS v3.1: 9.8 · EPSS: 0.1182 (93.8 percentile)

EPSS highNetworkNo privilegesNo user interactionImproper Authentication

Source data as of:

At a glance

Severity
CRITICAL
CVSS
9.8 v3.1 · NVD
EPSS
0.1182 (93.8 percentile) · FIRST.org
CISA KEV
No
Type
Improper Authentication · NVD CWE
Attack conditions (CVSS vector)
NetworkNo privilegesNo user interaction · Source: NVD Vector
Affected vendors
rockwellautomation
Published
2013-01-24 · Modified: 2026-06-03

CVSS / EPSS / KEV

CVSS v3.1 9.8 / 10 CRITICAL Source: NVD
EPSS 0.1182 93.8 percentile Source: FIRST.org
CISA KEV No Source: CISA

Source — CVSS: NVD · EPSS: FIRST.org · KEV: CISA. Data & Sources

Description

The device does not properly authenticate users and the potential exists for a remote user to upload a new firmware image to the Ethernet card, whether it is a corrupt or legitimate firmware image. Successful exploitation of this vulnerability could cause loss of availability, integrity, and confidentiality and a disruption in communications with other connected devices. Rockwell Automation EtherNet/IP products; 1756-ENBT, 1756-EWEB, 1768-ENBT, and 1768-EWEB communication modules; CompactLogix L32E and L35E controllers; 1788-ENBT FLEXLogix adapter; 1794-AENTR FLEX I/O EtherNet/IP adapter; ControlLogix 18 and earlier; CompactLogix 18 and earlier; GuardLogix 18 and earlier; SoftLogix 18 and earlier; CompactLogix controllers 19 and earlier; SoftLogix controllers 19 and earlier; ControlLogix controllers 20 and earlier; GuardLogix controllers 20 and earlier; and MicroLogix 1100 and 1400

Record details

CVE ID
CVE-2012-6437
CVSS (v3.1)
9.8 (CRITICAL)
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability subscore
3.9
Impact subscore
5.9
EPSS
0.1182 (93.8 percentile) — 2026-06-04
CISA KEV
No
Weakness (CWE)
CWE-287
Affected vendors
rockwellautomation
Affected configurations (CPE)
18
Published
2013-01-24
Modified
2026-06-03
Status
Modified

References

Reference URLs as listed by NVD, grouped by a mechanical match on the link's host/pattern. Labels describe the link type only.