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

Published: 2024-07-08 Last update: 2025-08-22 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-1305 is rated High Risk (76.4/100): CVSS Critical severity, with high exploitation likelihood (EPSS 8.33%, 92th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +7.28% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2024-1305

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-11-21 1.04% 8.33% +7.28%
2 2025-11-18 8.33% 1.04% -7.28%
3 2025-08-23 — 8.33% —

Full EPSS history (19 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-1305

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2024-1305

OS Trackers for CVE-2024-1305

vendor priority summary link
suse high CVE-2024-1305 severity important: SUSE including 4 source package names (openvpn, openvpn-auth-pam-plugin, openvpn-devel, openvpn-down-root-plugin), 73 product×package rows across 28 product lines (SUSE Enterprise Storage 7.1, SUSE Linux Enterprise High Performance Computing 12 SP5, … (28 product lines)): Known Not Affected 73. https://www.suse.com/security/cve/CVE-2024-1305/
ubuntu medium CVE-2024-1305 medium priority: Ubuntu including 1 source packages (openvpn), 8 status rows across 8 suites (bionic, focal, jammy, mantic, noble, trusty, upstream, xenial): not-affected 6, ignored 1, needs-triage 1. https://ubuntu.com/security/CVE-2024-1305

Affected software / configurations for CVE-2024-1305

Vendor Product Version Raw CPE
openvpn tap-windows6 <= 9.26.0 cpe:2.3:a:openvpn:tap-windows6:*:*:*:*:*:*:*:*

References for CVE-2024-1305

cvelogic Threat Intelligence