CVE-2026-7164— pf can overflow the stack parsing crafted SCTP packets
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I. Basic Information for CVE-2026-7164
Vulnerability Information
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Vulnerability Title
pf can overflow the stack parsing crafted SCTP packets
Source: NVD (National Vulnerability Database)
Vulnerability Description
Incorrect packet validation allowed unbounded recursion parsing SCTP chunk parameters. This can eventually result in a stack overflow and panic. Remote attackers can craft packets which cause affected systems to panic. This affects any system where pf is configured to process traffic, independent of the configured ruleset.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
未经控制的递归
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，该漏洞源于数据包验证不正确导致解析SCTP块参数时无限递归，可能导致堆栈溢出和崩溃，远程攻击者可构造数据包导致受影响系统崩溃。
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
II. Public POCs for CVE-2026-7164
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Same Patch Batch · FreeBSD · 2026-04-30 · 6 CVEs total
| CVE-2026-42511 | Remote code execution via malicious DHCP options | |
| CVE-2026-7270 | Local privilege escalation via execve() | |
| CVE-2026-42512 | Remotely triggerable out-of-bounds heap write in dhclient | |
| CVE-2026-35547 | Heap overflow in libnv | |
| CVE-2026-39457 | Stack overflow via select() file descriptor set overflow |
IV. Related Vulnerabilities
V. Comments for CVE-2026-7164
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