How severe is CVE-2024-1305?

CVE-2024-1305 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-1305 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 15% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-1305?

CVE-2024-1305 affects Openvpn Tap-windows6. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-1305?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2024-1305 have an EU (EUVD) identifier?

Yes. CVE-2024-1305 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-17065.

When was CVE-2024-1305 published?

CVE-2024-1305 was published on 2024-07-08 and last updated on 2026-06-17.

CVE-2024-1305

CVE-2024-1305 is a critical-severity vulnerability in Openvpn Tap-windows6 with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 15% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-190.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 15% (96th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-17065
Weakness: CWE-190
Affected product: Openvpn Tap-windows6
Published: 2024-07-08
Last modified: 2026-06-17

Description

tap-windows6 driver version 9.26 and earlier does not properly check the size data of incomming write operations which an attacker can use to overflow memory buffers, resulting in a bug check and potentially arbitrary code execution in kernel space

Frequently asked questions

What is CVE-2024-1305?: tap-windows6 driver version 9.26 and earlier does not properly check the size data of incomming write operations which an attacker can use to overflow memory buffers, resulting in a bug check and potentially arbitrary code execution in kernel space
How severe is CVE-2024-1305?: CVE-2024-1305 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-1305 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 15% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-1305?: CVE-2024-1305 affects Openvpn Tap-windows6. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-1305?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2024-1305 have an EU (EUVD) identifier?: Yes. CVE-2024-1305 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-17065.
When was CVE-2024-1305 published?: CVE-2024-1305 was published on 2024-07-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:openvpn:tap-windows6:*:*:*:*:*:*:*:*

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