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I. Basic Information for CVE-2026-4652
Vulnerability Information

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Vulnerability Title
Remote denial of service via null pointer dereference
Source: NVD (National Vulnerability Database)
Vulnerability Description
On a system exposing an NVMe/TCP target, a remote client can trigger a kernel panic by sending a CONNECT command for an I/O queue with a bogus or stale CNTLID. An attacker with network access to the NVMe/TCP target can trigger an unauthenticated Denial of Service condition on the affected machine.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
空指针解引用
Source: NVD (National Vulnerability Database)
Vulnerability Title
FreeBSD 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FreeBSD是FreeBSD基金会的一套类Unix操作系统。 FreeBSD存在安全漏洞,该漏洞源于暴露NVMe/TCP目标的系统在收到针对I/O队列的伪造或过期CNTLID的CONNECT命令时可能触发内核崩溃,可能导致未经身份验证的拒绝服务攻击。
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
VendorProductAffected VersionsCPESubscribe
FreeBSDFreeBSD 15.0-RELEASE ~ p5 -
II. Public POCs for CVE-2026-4652
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III. Intelligence Information for CVE-2026-4652
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IV. Related Vulnerabilities
V. Comments for CVE-2026-4652

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