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CVE-2026-110912

一分钟漏洞结论

影响对象
DragonFlyBSD DragonFlyBSD
利用判断
尚无明确在野利用证据,仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本;无法立即升级时,限制受影响服务暴露并加强监测。

In DragonFly BSD through 6.4.2 before 4bb22ff, the ARP input handlers arpintr() and in_arpinput() (sys/netinet/if_ether.c) do not validate the hardware address length (ar_hln) and protocol address length (ar_pln) fields of incoming ARP packets. in_arpreply() t

CVSS 7.1 · High
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一、 漏洞 CVE-2026-110912 基础信息

漏洞信息

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Vulnerability Title
N/A
来源: CVE Program / CVE List V5
Vulnerability Description
In DragonFly BSD through 6.4.2 before 4bb22ff, the ARP input handlers arpintr() and in_arpinput() (sys/netinet/if_ether.c) do not validate the hardware address length (ar_hln) and protocol address length (ar_pln) fields of incoming ARP packets. in_arpreply() then uses these attacker-controlled values as memcpy lengths when copying from kernel buffers that are only 6 and 4 bytes long, resulting in an out-of-bounds read of kernel heap and stack memory that is copied into the ARP reply sent back to the requester. An unauthenticated attacker on the adjacent network can use a single crafted ARP request to disclose up to roughly 250 bytes of each type of kernel memory, including kernel pointers. This is expected to be fixed in the 6.6 stable release when that is available.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
来源: CVE Program / CVE List V5
Vulnerability Type
长度参数不一致性处理不恰当
来源: CVE Program / CVE List V5

受影响产品

厂商 产品 影响版本 CPE 订阅
DragonFlyBSD DragonFlyBSD 984263bcb83ad82313113c6ac840d99124d8f90c ~ 4bb22ffcf2e9fb44995fbfd9945194afc87fb182 -

二、漏洞 CVE-2026-110912 的公开POC

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三、漏洞 CVE-2026-110912 的情报信息

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CVE-2026-110912 补丁与修复 (1)

IV. Related Vulnerabilities

V. Comments for CVE-2026-110912

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