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CVE-2021-36082

26
FAUCET Score

CVE-2021-36082 is a high-severity stack-based buffer overflow vulnerability (CWE-787) found in ntop nDPI version 3.4, specifically within the processClientServerHello function. This flaw carries a CVSSv3.1 score of 8.8, indicating it can be exploited remotely with low attack complexity, requiring user interaction, to achieve high impacts on confidentiality, integrity, and availability. While no active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage has been observed, its high FAUCET Risk Score of 70/100 and EPSS percentile suggest a non-negligible potential for future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
3.4CPE matchmatch criteria
cpe:2.3:a:ntop:ndpi:3.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.76%
Probability of exploitation in next 30 days
EPSS Percentile
75.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0176 is in the 74th percentile among its peer group of 14,848 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

bugs.chromium.org / p/oss-fuzz/issues/detail
ExploitIssue TrackingPatchThird Party Advisory
github.com / google/oss-fuzz-vulns/blob/main/vulns/ndpi/OSV-2021-304.yaml
Third Party Advisory
github.com / ntop/nDPI/commit/1ec621c85b9411cc611652fd57a892cfef478af3
PatchThird Party Advisory