CVE-2026-116744 json
ntop nDPI through 6.0 Out-of-Bounds Read in SoftEther Dissector
published 2026-10-26 13 d ago modified 2026-10-31 9 d ago also EUVD-2026-110492
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 37%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- github.com/ntop/nDPI@ca9d819 commit
- github.com/ntop/nDPI#3298 pull request
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 9 d ago
Exploit prediction
0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 6.9 | 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 |
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
| CNA | 4.0 | 6.9 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- ntop nDPI
Classification
- Weakness
-
- CWE-125 Out-of-bounds Read
References
-
github.com
/ntop/nDPI/pull/3298
issue-tracking, patch
-
github.com
/ntop/nDPI/commit/ca9d819151606377ac53305583fe819748c69be2
patch
-
github.com
/ntop/nDPI
product
-
github.com
/ntop/nDPI/blob/6.0/src/lib/protocols/softether.c#L203
technical-description
-
hackmd.io
/@haindpwn/ndpi-softether-host-fqdn-strncmp-oob-read
third-party-advisory
-
github.com
/ntop/nDPI/issues/3291
issue-tracking
-
vulncheck.com
/advisories/ntop-ndpi-through-6.0-out-of-bounds-read-in-softether-dissector
third-party-advisory
Sources
- CVE List CVE-2026-116744
- NVD CVE-2026-116744
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