CVE-2026-116744

EUVD-2026-110492
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
5.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: 37.2%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).
VendorProductVersionSource
ntopndpi
𝑥
≤ 6.0
CNA
Debian logo
Debian Releases
Debian Product
Codename
ndpi
bookworm
vulnerable
forky
vulnerable
sid
vulnerable
trixie
vulnerable
Common Weakness Enumeration
References
https://github.com/ntop/nDPI
https://github.com/ntop/nDPI/blob/6.0/src/lib/protocols/softether.c#L203
https://github.com/ntop/nDPI/commit/ca9d819151606377ac53305583fe819748c69be2
https://github.com/ntop/nDPI/issues/3291
https://github.com/ntop/nDPI/pull/3298
https://hackmd.io/@haindpwn/ndpi-softether-host-fqdn-strncmp-oob-read
https://www.vulncheck.com/advisories/ntop-ndpi-through-6.0-out-of-bounds-read-in-softether-dissector