Is CVE-2024-27459 in the CISA KEV catalog?

No. CVE-2024-27459 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-27459?

CVE-2024-27459 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2024-27459?

CVE-2024-27459 has an EPSS score of 8.26% (94th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-27459?

Upgrade OpenVPN to 2.5.10 or later.

CVE & CISA-KEV Catalog

CVE-2024-27459

HIGHEPSS 94th pctl

7.8

CVSS v3

NVD

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.

CWE-121Stack-based Buffer Overflow CWE-787Out-of-bounds Write

How to fix

Remediation Available

OpenVPNWindows application

Affected:2.5.10Fixed in:2.5.10OpenVPN, Inc.

Affected:2.6.0 2.6.10Fixed in:2.6.10OpenVPN, Inc.

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

8.26%probability of exploitation in 30 days

94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

References

Vendor Advisory2

Mailing List1

mail-archive.com

Related Vulnerabilities

Other CWE-121 (Stack-based Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2009-0927	High	8.8	97%	KEV	Fix
CVE-2020-10924	High	8.8	87%	-	-
CVE-2022-20705	Critical	10.0	80%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.