How severe is CVE-2023-34642?

CVE-2023-34642 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-2023-34642 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-34642?

CVE-2023-34642 affects Kioware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-34642?

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-2023-34642 published?

CVE-2023-34642 was published on 2023-06-19 and last updated on 2026-06-17.

CVE-2023-34642

CVE-2023-34642 is a high-severity vulnerability in Kioware 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-78.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Kioware
Published: 2023-06-19
Last modified: 2026-06-17

Description

KioWare for Windows through v8.33 was discovered to contain an incomplete blacklist filter for blocked dialog boxes on Windows 10. This issue can allow attackers to open a file dialog box via the function showDirectoryPicker() which can then be used to open an unprivileged command prompt.

Frequently asked questions

What is CVE-2023-34642?: KioWare for Windows through v8.33 was discovered to contain an incomplete blacklist filter for blocked dialog boxes on Windows 10. This issue can allow attackers to open a file dialog box via the function showDirectoryPicker() which can then be used to open an unprivileged command prompt.
How severe is CVE-2023-34642?: CVE-2023-34642 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-2023-34642 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-34642?: CVE-2023-34642 affects Kioware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-34642?: 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-2023-34642 published?: CVE-2023-34642 was published on 2023-06-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:kioware:kioware:*:*:*:*:*:windows:*:*

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