CVE-2026-110912: high-severity vulnerability in DragonFlyBSD
Published · Updated
41Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 7.1epss 0.2%
from disclosure to weapon0 days
Published on NVDOct 15
1st PoCOct 15
exploitation probability
0.2%top 94% of all CVEs
observed exploitation
nono source reports it
2 public exploit(s)
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.
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
Affected products
DragonFlyBSD · DragonFlyBSDpublic PoCs found — 2
githubgithub.com/0xBlackash/CVE-2026-110912★ 1githubgithub.com/dreamfast/CVE-2026-110912★ 0⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.