CVE-2026-7270— Local privilege escalation via execve()
Possible ATT&CK Techniques 2AI
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I. Basic Information for CVE-2026-7270
Vulnerability Information
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Vulnerability Title
Local privilege escalation via execve()
Source: NVD (National Vulnerability Database)
Vulnerability Description
An operator precedence bug in the kernel results in a scenario where a buffer overflow causes attacker-controlled data to overwrite adjacent execve(2) argument buffers. The bug may be exploitable by an unprivileged user to obtain superuser privileges.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
操作符优先级逻辑错误
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于运算符优先级错误导致缓冲区溢出，可能使攻击者控制的数据覆盖相邻的execve参数缓冲区，非特权用户可利用此漏洞获取超级用户权限。
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-2026-7270
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Advisory · 1
Same Patch Batch · FreeBSD · 2026-04-30 · 6 CVEs total
| CVE-2026-42511 | Remote code execution via malicious DHCP options | |
| CVE-2026-7164 | pf can overflow the stack parsing crafted SCTP packets | |
| 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
Same product: FreeBSD
- CVE-2026-35547
Heap overflow in libnv - CVE-2026-39457
Stack overflow via select() file descriptor set overflow - CVE-2026-42512
Remotely triggerable out-of-bounds heap write in dhclient - CVE-2026-7164
pf can overflow the stack parsing crafted SCTP packets - CVE-2026-42511
Remote code execution via malicious DHCP options
Same vendor: FreeBSD
- CVE-2026-35547
Heap overflow in libnv - CVE-2026-39457
Stack overflow via select() file descriptor set overflow - CVE-2026-42512
Remotely triggerable out-of-bounds heap write in dhclient - CVE-2026-7164
pf can overflow the stack parsing crafted SCTP packets - CVE-2026-42511
Remote code execution via malicious DHCP options
V. Comments for CVE-2026-7270
Anonymous User
2026-05-09 03:31:38为什么cpe影响域只有FreeBSD，然后描述中显示影响linux