CVE-2018-7521
CVE-2018-7521 is a medium-severity vulnerability in Omron Cx-supervisor with a CVSS 3.x base score of 5.3. 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-416.
Key facts
- Severity: Medium (CVSS 3.x base score 5.3)
- CVSS v2: 4.6
- EPSS exploit prediction: 0% (27th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-416
- Affected product: Omron Cx-supervisor
- Published:
- Last modified:
Description
In Omron CX-Supervisor Versions 3.30 and prior, use after free vulnerabilities can be exploited when CX Supervisor parses a specially crafted project file.
Frequently asked questions
- What is CVE-2018-7521?
- In Omron CX-Supervisor Versions 3.30 and prior, use after free vulnerabilities can be exploited when CX Supervisor parses a specially crafted project file.
- How severe is CVE-2018-7521?
- CVE-2018-7521 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
- Is CVE-2018-7521 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-7521?
- CVE-2018-7521 affects Omron Cx-supervisor. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-7521?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2018-7521 published?
- CVE-2018-7521 was published on 2018-03-21 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:omron:cx-supervisor:*:*:*:*:*:*:*:*
More vulnerabilities in Omron Cx-supervisor
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- CVE-2018-19017 — High (CVSS 8.8): Several use after free vulnerabilities have been identified in CX-Supervisor (Versions 3.42 and prior). When processing…
- CVE-2018-19011 — High (CVSS 8.8): CX-Supervisor (Versions 3.42 and prior) can execute code that has been injected into a project file. An attacker could…
- CVE-2018-17913 — High (CVSS 7.8): A type confusion vulnerability exists when processing project files in Omron CX-Supervisor Versions 3.4.1.0 and prior,…
- CVE-2018-17909 — High (CVSS 7.8): When processing project files in Omron CX-Supervisor Versions 3.4.1.0 and prior, the application fails to check if it…
- CVE-2018-17905 — High (CVSS 7.8): When processing project files in Omron CX-Supervisor Versions 3.4.1.0 and prior and tampering with a specific byte,…
All CVEs affecting Omron Cx-supervisor →
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