CVE-2026-116744

medium

Description

ntop nDPI through 6.0 contains an out-of-bounds read vulnerability in dissect_softether_host_fqdn() in softether.c that compares host_name using the consumed byte count instead of data length. Remote attackers can send crafted short UDP datagrams on already-classified SoftEther flows, causing strncmp to read beyond the packet payload buffer.

References

https://www.vulncheck.com/advisories/ntop-ndpi-through-6.0-out-of-bounds-read-in-softether-dissector

https://hackmd.io/@haindpwn/ndpi-softether-host-fqdn-strncmp-oob-read

https://github.com/ntop/nDPI/pull/3298

https://github.com/ntop/nDPI/issues/3291

https://github.com/ntop/nDPI/commit/ca9d819151606377ac53305583fe819748c69be2

https://github.com/ntop/nDPI/blob/6.0/src/lib/protocols/softether.c#L203

https://github.com/ntop/nDPI

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-110492

Details

Source: Mitre, NVD

Published: 2026-10-26

Updated: 2026-10-26

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 5.3

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Severity: Medium

CVSS v4

Base Score: 6.9

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Severity: Medium

EPSS

EPSS: 0.00431