Every CVE Search/ Get API key

CVE-2021-36082

ntop nDPI 3.4 has a stack-based buffer overflow in processClientServerHello.

8.8 HighFix available

ntop nDPI 3.4 has a stack-based buffer overflow in processClientServerHello.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

1.76%Up 0.9 points since Jul 1, 2021
90%50%10%1%

What each source reports

NVD Score used 8.8

ntop nDPI 3.4 has a stack-based buffer overflow in processClientServerHello.

Record
CVE-2021-36082
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0
6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness
CWE-787
Updated
2026-11-02
CVE List No score

ntop nDPI 3.4 has a stack-based buffer overflow in processClientServerHello.

Record
CVE-2021-36082
Updated
2026-11-02
EUVDEUVD-2021-22715 No score

ntop nDPI 3.4 has a stack-based buffer overflow in processClientServerHello.

Record
EUVD-2021-22715
Updated
2026-11-03
GitHub AdvisoriesGHSA-m94w-7cmq-758f No score

ntop nDPI 3.4 has a stack-based buffer overflow in processClientServerHello.

ntop nDPI 3.4 has a stack-based buffer overflow in processClientServerHello.

Record
GHSA-m94w-7cmq-758f
Weakness
CWE-787
Updated
2026-11-02
OSV 8.8

ntop nDPI 3.4 has a stack-based buffer overflow in processClientServerHello.

Record
CVE-2021-36082
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2021-36082 8.8

ntop nDPI 3.4 has a stack-based buffer overflow in processClientServerHello.

Record
DEBIAN-CVE-2021-36082
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
ndpi
Debian:12
 before 4.0-1
4.0-1
ndpi
Debian:13
 before 4.0-1
4.0-1
ndpi
Debian:14
 before 4.0-1
4.0-1

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-36082 is a high vulnerability (CVSS 8.8) in Ntop Ndpi, published July 1, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.76%, the 78th percentile. Fixed in ndpi 4.0-1.

References

Pages All vulnerabilities Browse Docs Sources Guide Get API key
MoveEnter Open