How severe is CVE-2023-38747?

CVE-2023-38747 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-38747 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-38747?

CVE-2023-38747 affects Omron Cx-programmer. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-38747?

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-2023-38747 published?

CVE-2023-38747 was published on 2023-08-03 and last updated on 2026-06-17.

CVE-2023-38747

CVE-2023-38747 is a high-severity vulnerability in Omron Cx-programmer 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)
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Omron Cx-programmer
Published: 2023-08-03
Last modified: 2026-06-17

Description

Heap-based buffer overflow vulnerability exists in CX-Programmer Included in CX-One CXONE-AL[][]D-V4 V9.80 and earlier. By having a user open a specially crafted CXP file, information disclosure and/or arbitrary code execution may occur.

Frequently asked questions

What is CVE-2023-38747?: Heap-based buffer overflow vulnerability exists in CX-Programmer Included in CX-One CXONE-AL[][]D-V4 V9.80 and earlier. By having a user open a specially crafted CXP file, information disclosure and/or arbitrary code execution may occur.
How severe is CVE-2023-38747?: CVE-2023-38747 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-38747 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-38747?: CVE-2023-38747 affects Omron Cx-programmer. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-38747?: 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-2023-38747 published?: CVE-2023-38747 was published on 2023-08-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:omron:cx-programmer:*:*:*:*:*:*:*:*

More vulnerabilities in Omron Cx-programmer

CVE-2015-0987 — Critical (CVSS 10.0): Omron CX-One CX-Programmer before 9.6, CJ2M PLC devices before 2.1, and CJ2H PLC devices before 1.5 rely on cleartext…
CVE-2023-22277 — High (CVSS 7.8): Use after free vulnerability exists in CX-Programmer Ver.9.79 and earlier. By having a user open a specially crafted…
CVE-2023-22317 — High (CVSS 7.8): Use after free vulnerability exists in CX-Programmer Ver.9.79 and earlier. By having a user open a specially crafted…
CVE-2023-22314 — High (CVSS 7.8): Use after free vulnerability exists in CX-Programmer Ver.9.79 and earlier. By having a user open a specially crafted…
CVE-2023-38748 — High (CVSS 7.8): Use after free vulnerability exists in CX-Programmer Included in CX-One CXONE-AL[][]D-V4 V9.80 and earlier. By having a…
CVE-2023-38746 — High (CVSS 7.8): Out-of-bounds read vulnerability/issue exists in CX-Programmer Included in CX-One CXONE-AL[][]D-V4 V9.80 and earlier.…

All CVEs affecting Omron Cx-programmer →

Other CWE-787 (Out-of-bounds Write) vulnerabilities

CVE-2026-42369 — Critical (CVSS 10.0): GV-VMS V20 is a Video Monitoring Software used to gather the feeds of many surveillance cameras and manage other…
CVE-2026-4746 — Critical (CVSS 10.0): Out-of-bounds Write vulnerability in timeplus-io proton (base/poco/Foundation/src‎ modules). This vulnerability is…
CVE-2025-43300 — Critical (CVSS 10.0): An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 15.8.5 and iPadOS…
CVE-2025-24201 — Critical (CVSS 10.0): An out-of-bounds write issue was addressed with improved checks to prevent unauthorized actions. This issue is fixed in…
CVE-2024-42479 — Critical (CVSS 10.0): llama.cpp provides LLM inference in C/C++. The unsafe `data` pointer member in the `rpc_tensor` structure can cause…
CVE-2024-39791 — Critical (CVSS 10.0): Stack-based buffer overflow vulnerabilities affecting Vonets industrial wifi bridge relays and wifi bridge…

Browse all CWE-787 (Out-of-bounds Write) vulnerabilities →