How severe is CVE-2022-4634?

CVE-2022-4634 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-2022-4634 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-4634?

CVE-2022-4634 primarily affects Deltaww Cncsoft. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-4634?

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-2022-4634 published?

CVE-2022-4634 was published on 2023-02-03 and last updated on 2026-06-17.

CVE-2022-4634

CVE-2022-4634 is a high-severity vulnerability in Deltaww Cncsoft 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: 5% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Deltaww Cncsoft
Published: 2023-02-03
Last modified: 2026-06-17

Description

All versions prior to Delta Electronic’s CNCSoft version 1.01.34 (running ScreenEditor versions 1.01.5 and prior) are vulnerable to a stack-based buffer overflow, which could allow an attacker to remotely execute arbitrary code.

Frequently asked questions

What is CVE-2022-4634?: All versions prior to Delta Electronic’s CNCSoft version 1.01.34 (running ScreenEditor versions 1.01.5 and prior) are vulnerable to a stack-based buffer overflow, which could allow an attacker to remotely execute arbitrary code.
How severe is CVE-2022-4634?: CVE-2022-4634 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-2022-4634 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-4634?: CVE-2022-4634 primarily affects Deltaww Cncsoft. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-4634?: 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-2022-4634 published?: CVE-2022-4634 was published on 2023-02-03 and last updated on 2026-06-17.

References

https://www.cisa.gov/uscert/ics/advisories/icsa-23-026-01

Affected products (2)

cpe:2.3:a:deltaww:cncsoft:*:*:*:*:*:*:*:*
cpe:2.3:a:deltaww:screeneditor:*:*:*:*:*:*:*:*

More vulnerabilities in Deltaww Cncsoft

CVE-2018-10636 — High (CVSS 8.8): CNCSoft Version 1.00.83 and prior with ScreenEditor Version 1.00.54 has multiple stack-based buffer overflow…
CVE-2018-10598 — High (CVSS 8.1): CNCSoft Version 1.00.83 and prior with ScreenEditor Version 1.00.54 has two out-of-bounds read vulnerabilities could…
CVE-2022-1405 — High (CVSS 7.8): CNCSoft: All versions prior to 1.01.32 does not properly sanitize input while processing a specific project file,…
CVE-2021-43982 — High (CVSS 7.8): Delta Electronics CNCSoft Versions 1.01.30 and prior are vulnerable to a stack-based buffer overflow, which may allow…
CVE-2025-47727 — High (CVSS 7.3): Delta Electronics CNCSoft lacks proper validation of the user-supplied file. If a user opens a malicious file, an…
CVE-2025-47726 — High (CVSS 7.3): Delta Electronics CNCSoft lacks proper validation of the user-supplied file. If a user opens a malicious file, an…

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