How severe is CVE-2024-27459?

CVE-2024-27459 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-2024-27459 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-27459?

CVE-2024-27459 affects Openvpn. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-27459?

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.

Does CVE-2024-27459 have an EU (EUVD) identifier?

Yes. CVE-2024-27459 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-24657.

When was CVE-2024-27459 published?

CVE-2024-27459 was published on 2024-07-08 and last updated on 2026-06-17.

CVE-2024-27459

CVE-2024-27459 is a high-severity vulnerability in Openvpn 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: 8% (94th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-24657
Weakness: CWE-787
Affected product: Openvpn
Published: 2024-07-08
Last modified: 2026-06-17

Description

The interactive service in OpenVPN 2.6.9 and earlier allows an attacker to send data causing a stack overflow which can be used to execute arbitrary code with more privileges.

Frequently asked questions

What is CVE-2024-27459?: The interactive service in OpenVPN 2.6.9 and earlier allows an attacker to send data causing a stack overflow which can be used to execute arbitrary code with more privileges.
How severe is CVE-2024-27459?: CVE-2024-27459 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-2024-27459 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-27459?: CVE-2024-27459 affects Openvpn. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-27459?: 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.
Does CVE-2024-27459 have an EU (EUVD) identifier?: Yes. CVE-2024-27459 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-24657.
When was CVE-2024-27459 published?: CVE-2024-27459 was published on 2024-07-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:openvpn:openvpn:*:*:*:*:community:*:*:*

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