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CVE-2018-17909· NVD / CVE Program· CNA icscert

When processing project files in Omron CX-Supervisor Versions 3.4.1.0 and prior, the application fails to check if it is referencing freed m

When processing project files in Omron CX-Supervisor Versions 3.4.1.0 and prior, the application fails to check if it is referencing freed memory, which may allow an attacker to execute code under the context of the application.

HighCVSS 7.8 · v3.0—No exploit No fix recorded
Published
Nov 5, 2018
Updated
Jun 16, 2026
EPSS
1.6% · 75th percentile
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Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.6%

Affected systems

VendorProduct
omroncx-supervisor

Affected versions

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

  • omron cx-supervisorup to 3.4.1.0 inclusive

Versions reported by the vendor

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

  • Omron CX-Supervisor

    • Versions 3.4.1.0 and prior.affected

Same product

omron: all records

Other highest-scoring records for the same primary product.

  • CVE-2019-18251In Omron CX-Supervisor, Versions 3.5 (12) and prior, Omron CX-Supervisor ships with Teamviewer Version 5.0.8703 QS.
    36Monitor
  • CVE-2018-19017Several use after free vulnerabilities have been identified in CX-Supervisor (Versions 3.42 and prior).
    36Monitor
  • CVE-2018-19011CX-Supervisor (Versions 3.42 and prior) can execute code that has been injected into a project file.
    36Monitor
  • CVE-2018-17913A type confusion vulnerability exists when processing project files in Omron CX-Supervisor Versions 3.4.1.0 and prior, which may allow an at
    31Monitor
  • CVE-2018-17905When processing project files in Omron CX-Supervisor Versions 3.4.1.0 and prior and tampering with a specific byte, memory corruption may oc
    31Monitor
  • CVE-2018-19018An access of uninitialized pointer vulnerability in CX-Supervisor (Versions 3.42 and prior) could lead to type confusion when processing pro
    29Monitor

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

  • Someone with local access to the system can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-416 · Use After Free

CVSS vector

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

nvd-primary

Root cause

After a memory region is freed, another reference pointing to it is still used. By then, the same region may have been allocated for different data.

The bug in code

The whole CWE-416 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

c
free(dev->buf);/* ... another thread is still running ... */process(dev->buf);

Fixed

c
lock(&dev->lock);free(dev->buf);dev->buf = NULL;unlock(&dev->lock);

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.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

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

References

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

All records