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CVE-2024-1305

39
FAUCET Score

CVE-2024-1305 is a critical vulnerability affecting the tap-windows6 driver version 9.26 and earlier, commonly used by OpenVPN. This flaw stems from insufficient size checks on incoming write operations, allowing an attacker to trigger a memory buffer overflow. The vulnerability carries a CVSS score of 9.8 (CRITICAL) due to its network-based attack vector, low attack complexity, and potential for a bug check, leading to denial of service or arbitrary code execution in kernel space. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion with 11 mentions, indicating high awareness.

Impacted Technologies

VendorProductVersion(s)CPE
<= 9.26.0CPE matchmatch criteria
cpe:2.3:a:openvpn:tap-windows6:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
15.38%
Probability of exploitation in next 30 days
EPSS Percentile
96.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.1538 is in the 92nd percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

community.openvpn.net / openvpn/wiki/CVE-2024-1305
Vendor Advisory
mail-archive.com / [email protected]/msg07534.html
Mailing ListRelease Notes