CVE-2018-8834
CVE-2018-8834 is a high-severity vulnerability in Omron Cx-flnet with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v2: 4.6
- EPSS exploit prediction: 0% (24th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Omron Cx-flnet
- Published:
- Last modified:
Description
Parsing malformed project files in Omron CX-One versions 4.42 and prior, including the following applications: CX-FLnet versions 1.00 and prior, CX-Protocol versions 1.992 and prior, CX-Programmer versions 9.65 and prior, CX-Server versions 5.0.22 and prior, Network Configurator versions 3.63 and prior, and Switch Box Utility versions 1.68 and prior, may cause a heap-based buffer overflow.
Frequently asked questions
- What is CVE-2018-8834?
- Parsing malformed project files in Omron CX-One versions 4.42 and prior, including the following applications: CX-FLnet versions 1.00 and prior, CX-Protocol versions 1.992 and prior, CX-Programmer versions 9.65 and prior, CX-Server versions 5.0.22 and prior, Network Configurator versions 3.63 and prior, and Switch Box Utility versions 1.68 and prior, may cause a heap-based buffer overflow.
- How severe is CVE-2018-8834?
- CVE-2018-8834 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2018-8834 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-8834?
- CVE-2018-8834 primarily affects Omron Cx-flnet. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2018-8834?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2018-8834 published?
- CVE-2018-8834 was published on 2018-04-17 and last updated on 2026-06-17.
References
Affected products (7)
- cpe:2.3:a:omron:cx-flnet:*:*:*:*:*:*:*:*
- cpe:2.3:a:omron:cx-one:*:*:*:*:*:*:*:*
- cpe:2.3:a:omron:cx-programmer:*:*:*:*:*:*:*:*
- cpe:2.3:a:omron:cx-protocol:*:*:*:*:*:*:*:*
- cpe:2.3:a:omron:cx-server:*:*:*:*:*:*:*:*
- cpe:2.3:a:omron:network_configurator:*:*:*:*:*:*:*:*
- cpe:2.3:a:omron:switch_box_utility:*:*:*:*:*:*:*:*
More vulnerabilities in Omron Cx-flnet
- CVE-2018-7530 — High (CVSS 7.8): Parsing malformed project files in Omron CX-One versions 4.42 and prior, including the following applications: CX-FLnet…
- CVE-2018-7514 — High (CVSS 7.8): Parsing malformed project files in Omron CX-One versions 4.42 and prior, including the following applications: CX-FLnet…
All CVEs affecting Omron Cx-flnet →
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