Is CVE-2012-6437 actively exploited?

No active exploitation of CVE-2012-6437 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2012-6437 be exploited remotely?

Yes. CVE-2012-6437 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2012-6437?

CVE-2012-6437 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2012-6437

CRITICAL

CVE-2012-6437

CWE-287Published: January 24, 2013· Updated: Jun 16, 2026

9.8

CVSS v3.1

Official 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

NVD Source

Technical Analysis

CVE-2012-6437 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

rockwellautomation17 product(s)

controllogix controllersguardlogix controllersmicrologixsoftlogix controllers1756-enbt1756-eweb1768-enbt1768-eweb1794-aentr flex i\/o ethernet\/ip adaptercompactlogixcompactlogix controllerscompactlogix l32e controller+5

Source: NVD CPE · 17 total CPE entries