ntop nDPI 3.4 has a stack-based buffer overflow in processClientServerHello.
Priority MEDIUM 42CWE-787Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
ntop nDPI 3.4 has a stack-based buffer overflow in processClientServerHello.
Why it matters now
EPSS 0.01762 78th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-36082
- 2026-10-03 Alias added: GHSA-m94w-7cmq-758f
References
More ntop Ndpi vulnerabilities
- TI-2020-09603 In nDPI through 3.2 Stable, the SSH protocol dissector has multiple KEXINIT integer… CVSS 3.1CRITICAL 9.8
- TI-2020-12182 In nDPI through 3.2, ndpi_reset_packet_line_info in lib/ndpi_main.c omits certain… CVSS 3.1CRITICAL 9.8
- TI-2020-12181 In nDPI through 3.2, there is a stack overflow in extractRDNSequence in lib/protocols/tls.c. CVSS 3.1CRITICAL 9.8
- TI-2020-12180 In nDPI through 3.2, the OpenVPN dissector is vulnerable to a heap-based buffer over-read… CVSS 3.1CRITICAL 9.1
- TI-2020-12179 In nDPI through 3.2, the H.323 dissector is vulnerable to a heap-based buffer over-read… CVSS 3.1CRITICAL 9.1
- TI-2020-12178 In nDPI through 3.2, the packet parsing code is vulnerable to a heap-based buffer… CVSS 3.1CRITICAL 9.1
Sources
- CVE-2021-36082 · CVE Program
- CVE-2021-36082 · NVD
- FIRST EPSS
- GHSA-m94w-7cmq-758f · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences