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CVE-2025-30334— OpenBSD wg(4) kernel crash

Quick assessment

Affected
OpenBSD OpenBSD
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenBSD是加拿大OpenBSD组织的一套跨平台的、基于BSD的类UNIX操作系统。 OpenBSD 7.6 errata 006之前版本和7.5 errata 015之前版本存在安全漏洞，该漏洞源于wg(4)流量可能导致内核崩溃。

CVSS 6.5 · Medium EPSS 0.44% · P36

Possible ATT&CK Techniques 1 AI

T1498 · Network Denial of Service
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I. Basic Information for CVE-2025-30334

Vulnerability Information
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Vulnerability Title
OpenBSD wg(4) kernel crash
Source: CVE Program / CVE List V5
Vulnerability Description
In OpenBSD 7.6 before errata 006 and OpenBSD 7.5 before errata 015, traffic sent over wg(4) could result in kernel crash.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
缓冲区大小计算不正确
Source: CVE Program / CVE List V5
Vulnerability Title
OpenBSD 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenBSD是加拿大OpenBSD组织的一套跨平台的、基于BSD的类UNIX操作系统。 OpenBSD 7.6 errata 006之前版本和7.5 errata 015之前版本存在安全漏洞，该漏洞源于wg(4)流量可能导致内核崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
OpenBSD OpenBSD 7.6 ~ 7.6 errata 006 -

II. Public POCs for CVE-2025-30334

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III. Intelligence Information for CVE-2025-30334

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Patches & Fixes for CVE-2025-30334 (1)

IV. Related Vulnerabilities

Same product: OpenBSD
Same vendor: OpenBSD
Same weakness: CWE-131

V. Comments for CVE-2025-30334

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