How severe is CVE-2023-6247?

CVE-2023-6247 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-6247 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-6247?

CVE-2023-6247 affects Openvpn Openvpn 3. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-6247?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2023-6247 have an EU (EUVD) identifier?

Yes. CVE-2023-6247 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-58492.

When was CVE-2023-6247 published?

CVE-2023-6247 was published on 2024-02-29 and last updated on 2026-06-17.

CVE-2023-6247

CVE-2023-6247 is a medium-severity vulnerability in Openvpn Openvpn 3 with a CVSS 3.x base score of 6.5. 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-476.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-58492
Weakness: CWE-476
Affected product: Openvpn Openvpn 3
Published: 2024-02-29
Last modified: 2026-06-17

Description

The PKCS#7 parser in OpenVPN 3 Core Library versions through 3.8.3 did not properly validate the parsed data, which would result in the application crashing.

Frequently asked questions

What is CVE-2023-6247?: The PKCS#7 parser in OpenVPN 3 Core Library versions through 3.8.3 did not properly validate the parsed data, which would result in the application crashing.
How severe is CVE-2023-6247?: CVE-2023-6247 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-6247 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-6247?: CVE-2023-6247 affects Openvpn Openvpn 3. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-6247?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-6247 have an EU (EUVD) identifier?: Yes. CVE-2023-6247 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-58492.
When was CVE-2023-6247 published?: CVE-2023-6247 was published on 2024-02-29 and last updated on 2026-06-17.

References

https://community.openvpn.net/openvpn/wiki/CVE-2023-6247

Affected products (1)

cpe:2.3:a:openvpn:openvpn_3:*:*:*:*:*:*:*:*

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