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CVE-2018-20026· NVD / CVE Program· CNA Kaspersky

Improper Communication Address Filtering exists in CODESYS V3 products versions prior V3.5.14.0.

Noroxi assessment

Priority: Monitor (action score 31/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 3% (FIRST EPSS); higher than 87.1% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

HighCVSS 7.5 · v3.1—No exploit No fix recorded
Published
Feb 19, 2019
Updated
Jun 16, 2026
EPSS
3.0% · 87th percentile
CWE
—

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 3.0%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2018-20026

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
codesyscontrol for beaglebone sl
codesyscontrol for empc-a\/imx6 sl
codesyscontrol for iot2000 sl
codesyscontrol for linux sl
codesyscontrol for pfc100 sl
codesyscontrol for pfc200 sl
codesyscontrol for raspberry pi sl
codesyscontrol rte sl
codesyscontrol rte sl \(for beckhoff cx\)
codesyscontrol runtime toolkit
codesyscontrol win sl
codesysdevelopment system v3

and 6 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • codesys control for beaglebone sl3.0 and later · before 3.5.14.0
  • codesys control for empc-a/imx6 sl3.0 and later · before 3.5.14.0
  • codesys control for iot2000 sl3.0 and later · before 3.5.14.0
  • codesys control for linux sl3.0 and later · before 3.5.14.0
  • codesys control for pfc100 sl3.0 and later · before 3.5.14.0
  • codesys control for pfc200 sl3.0 and later · before 3.5.14.0
  • codesys control for raspberry pi sl3.0 and later · before 3.5.14.0
  • codesys control rte sl3.0 and later · before 3.5.14.0
  • codesys control rte sl (for beckhoff cx)3.0 and later · before 3.5.14.0
  • codesys control runtime toolkit3.0 and later · before 3.5.14.0
  • codesys control win sl3.0 and later · before 3.5.14.0
  • codesys development system v33.0 and later · before 3.5.14.0
  • codesys gateway3.0 and later · before 3.5.14.0
  • codesys hmi sl3.0 and later · before 3.5.14.0
  • codesys opc server3.0 and later · before 3.5.14.0
  • codesys plchandler3.0 and later · before 3.5.14.0
  • codesys safety sil23.0 and later · before 3.5.14.0
  • codesys targetvisu sl3.0 and later · before 3.5.14.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Kaspersky). Independent of NVD's CPE analysis and usually ahead of it.

  • Kaspersky Lab CODESYS V3 products

    • prior V3.5.14.0affected

Same product

codesys: all records

Other highest-scoring records for the same primary product.

  • CVE-2019-9010An issue was discovered in 3S-Smart CODESYS V3 products.
    40Plan
  • CVE-2018-10612In 3S-Smart Software Solutions GmbH CODESYS Control V3 products prior to version 3.5.14.0, user access management and communication encrypti
    39Monitor
  • CVE-2022-47379CODESYS: Multiple products prone to out-of-bounds write
    36Monitor
  • CVE-2023-6357OS Command Injection in multiple CODESYS products
    35Monitor
  • CVE-2022-4046CODESYS: Improper memory restrictions fro CODESYS Control
    35Monitor
  • CVE-2022-47390CODESYS: Multiple products prone to stack based out-of-bounds write
    35Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
none
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
None

Weakness class (CWE)

—

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Show all references (2 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records