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CVE-2020-12069

In CODESYS V3 products in all versions prior V3.5.16.0 containing the CmpUserMgr, the CODESYS Control runtime system stores the online communication passwords using a weak hashing algorithm. This can be used by a local attacker with low privileges to gain full control of the device.
7.8
CVSS
6.4
ShadowTrackr
NO
CISA KEV
-
NCSC.nl
CVSS v4.0 Metrics
Exploitability
Attack VectorLocal
ComplexityLow
RequirementsPresent
PrivilegesLow
User InteractionNone
Threat
Exploit MaturityPoC
Vulnerable System
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
Subsequent System
ConfidentialityNone
IntegrityNone
AvailabilityNone
Supplemental
SafetyNegligible
AutomatableYes
RecoveryAutomatic
Value DensityConcentrated
UrgencyMedium
Patch StatusUnavailable

Change Log
DateSourceChangesScore
2026-07-21PoCE: U→P4.4 → 6.4
2026-07-21cve.orginitial, patch: Unavailable4.4

Affected Software
VendorProductVersion
CODESYSCODESYS V3 containing the CmpUserMgr< V3.5.16.0
codesyscontrol_for_beaglebone< 3.5.16.0
codesyscontrol_for_empc-a\/imx6< 3.5.16.0
codesyscontrol_for_iot2000< 3.5.16.0
codesyscontrol_for_linux< 3.5.16.0
codesyscontrol_for_pfc100< 3.5.16.0
codesyscontrol_for_pfc200< 3.5.16.0
codesyscontrol_for_plcnext< 3.5.16.0
codesyscontrol_for_raspberry_pi< 3.5.16.0
codesyscontrol_rte_v3< 3.5.16.0
codesyscontrol_v3_runtime_system_toolkit< 3.5.16.0
codesyscontrol_win_v3< 3.5.16.0
codesyshmi_v3< 3.5.16.0
codesysv3_simulation_runtime< 3.5.16.0
festocontroller_cecc-d_firmware2.3.8.0
festocontroller_cecc-d_firmware2.3.8.1
festocontroller_cecc-lk_firmware2.3.8.0
festocontroller_cecc-lk_firmware2.3.8.1
festocontroller_cecc-s_firmware2.3.8.0
festocontroller_cecc-s_firmware2.3.8.1
pilzpmc≥ 3.0.0, < 3.5.17
wago750-8100_firmware< 03.06.19\(18\)
wago750-8101_firmware< 03.06.19\(18\)
wago750-8102_firmware< 03.06.19\(18\)
wago750-8202_firmware< 03.06.19\(18\)
wago750-8203_firmware< 03.06.19\(18\)
wago750-8204_firmware< 03.06.19\(18\)
wago750-8206_firmware< 03.06.19\(18\)
wago750-8207_firmware< 03.06.19\(18\)
wago750-8210_firmware< 03.06.19\(18\)
wago750-8211_firmware< 03.06.19\(18\)
wago750-8212_firmware< 03.06.19\(18\)
wago750-8213_firmware< 03.06.19\(18\)
wago750-8214_firmware< 03.06.19\(18\)
wago750-8215_firmware< 03.06.19\(18\)
wago750-8216_firmware< 03.06.19\(18\)
wago750-8217_firmwareAll versions
wago752-8303\/8000-0002_firmware< 03.06.19\(18\)
wago762-4201\/8000-001_firmware< 03.06.19\(18\)
wago762-4202\/8000-001_firmware< 03.06.19\(18\)
wago762-4203\/8000-001_firmware< 03.06.19\(18\)
wago762-4204\/8000-001_firmware< 03.06.19\(18\)
wago762-4205\/8000-001_firmware< 03.06.19\(18\)
wago762-4205\/8000-002_firmware< 03.06.19\(18\)
wago762-4206\/8000-001_firmware< 03.06.19\(18\)
wago762-4206\/8000-002_firmware< 03.06.19\(18\)
wago762-4301\/8000-002_firmware< 03.06.19\(18\)
wago762-4302\/8000-002_firmware< 03.06.19\(18\)
wago762-4303\/8000-002_firmware< 03.06.19\(18\)
wago762-4304\/8000-002_firmware< 03.06.19\(18\)
wago762-4305\/8000-002_firmware< 03.06.19\(18\)
wago762-4306\/8000-002_firmware< 03.06.19\(18\)
wago762-5203\/8000-001_firmware≤ 03.06.19\(18\)
wago762-5204\/8000-001_firmware< 03.06.19\(18\)
wago762-5205\/8000-001_firmware< 03.06.19\(18\)
wago762-5206\/8000-001_firmware< 03.06.19\(18\)
wago762-5303\/8000-002_firmware< 03.06.19\(18\)
wago762-5304\/8000-002_firmware< 03.06.19\(18\)
wago762-5305\/8000-002_firmware< 03.06.19\(18\)
wago762-5306\/8000-002_firmware< 03.06.19\(18\)
wago762-6201\/8000-001_firmware≤ 03.06.19\(18\)
wago762-6202\/8000-001_firmware< 03.06.19\(18\)
wago762-6203\/8000-001_firmware< 03.06.19\(18\)
wago762-6204\/8000-001_firmware< 03.06.19\(18\)
wago762-6301\/8000-002_firmware< 03.06.19\(18\)
wago762-6302\/8000-002_firmware< 03.06.19\(18\)
wago762-6303\/8000-002_firmware< 03.06.19\(18\)
wago762-6304\/8000-002_firmware< 03.06.19\(18\)
Published: 2022-12-26