synced 11 MIN AGO
01 Record

CVE-2021-29242

CODESYS Control Runtime system before 3.5.17.0 has improper input validation. Attackers can send crafted communication packets to change the router's addressing scheme and may re-route, add, remove or

UnratedPUBLISHEDCNA: mitre
CNA base scoreUnratedNo CNA CVSS vector

02 Description

CODESYS Control Runtime system before 3.5.17.0 has improper input validation. Attackers can send crafted communication packets to change the router's addressing scheme and may re-route, add, remove or

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
1.06% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 64.5% of scored records. A rank, not a probability.
NVD base score
7.3 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-05-03 13:56Z5 YR AGO
Last updated
2024-08-03 22:02Z2 YR AGO
Reserved
2021-03-25
Assigning CNA
mitre
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-20Improper Input ValidationClass
Data version
5.1
Document digest
69015e93b67a5f57a9267a12923678ccdd293e18e0409476f28d2a59ae95f101

05 Affected products

VendorProductVersionsPlatforms
codesyscontrol_for_beaglebone_slNot specified—
codesyscontrol_for_empc-a/imx6_slNot specified—
codesyscontrol_for_iot2000_slNot specified—
codesyscontrol_for_linux_arm_slNot specified—
codesyscontrol_for_linux_slNot specified—
codesyscontrol_for_pfc100_slNot specified—
codesyscontrol_for_pfc200_slNot specified—
codesyscontrol_for_plcnext_slNot specified—
codesyscontrol_for_raspberry_pi_slNot specified—
codesyscontrol_rteNot specified—
codesyscontrol_runtime_system_toolkitNot specified—
codesyscontrol_winNot specified—
codesysedge_gatewayNot specified—
codesysembedded_target_visu_toolkitNot specified—
codesysgatewayNot specified—
codesyshmiNot specified—
codesysopc_serverNot specified—
codesysplchandlerNot specified—
codesysremote_target_visu_toolkitNot specified—
codesyssafety_silNot specified—
codesyssimulation_runtimeNot specified—

06 References