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CVE-2026-7270— Local privilege escalation via execve()

Quick assessment

Affected
FreeBSD FreeBSD
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.

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。

AI Predicted 7.8 Difficulty: Hard EPSS 0.18% · P8

Affected Version Matrix 4

VendorProduct Version RangeStatus
FreeBSD FreeBSD 15.0-RELEASE< p7 affected
14.4-RELEASE< p3 affected
14.3-RELEASE< p12 affected
13.5-RELEASE< p13 affected
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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: CVE Program / CVE List V5
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: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
操作符优先级逻辑错误
Source: CVE Program / CVE List V5
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

Vendor Product Affected Versions CPE Subscribe
FreeBSD FreeBSD 15.0-RELEASE ~ p7 -

II. Public POCs for CVE-2026-7270

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III. Intelligence Information for CVE-2026-7270

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Vendor Advisories for CVE-2026-7270 (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
Same vendor: FreeBSD
Same weakness: CWE-783

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

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