CVE-2021-36082
CVE-2021-36082 is a high-severity vulnerability in Ntop Ndpi with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- CVSS v2: 6.8
- EPSS exploit prediction: 2% (75th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Ntop Ndpi
- Published:
- Last modified:
Description
ntop nDPI 3.4 has a stack-based buffer overflow in processClientServerHello.
Frequently asked questions
- What is CVE-2021-36082?
- ntop nDPI 3.4 has a stack-based buffer overflow in processClientServerHello.
- How severe is CVE-2021-36082?
- CVE-2021-36082 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-36082 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-36082?
- CVE-2021-36082 affects Ntop Ndpi. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-36082?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2021-36082 published?
- CVE-2021-36082 was published on 2021-07-01 and last updated on 2026-06-17.
References
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=30393
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/ndpi/OSV-2021-304.yaml
- https://github.com/ntop/nDPI/commit/1ec621c85b9411cc611652fd57a892cfef478af3
Affected products (1)
- cpe:2.3:a:ntop:ndpi:3.4:*:*:*:*:*:*:*
More vulnerabilities in Ntop Ndpi
- CVE-2020-15475 — Critical (CVSS 9.8): In nDPI through 3.2, ndpi_reset_packet_line_info in lib/ndpi_main.c omits certain reinitialization, leading to a…
- CVE-2020-15474 — Critical (CVSS 9.8): In nDPI through 3.2, there is a stack overflow in extractRDNSequence in lib/protocols/tls.c.
- CVE-2020-11939 — Critical (CVSS 9.8): In nDPI through 3.2 Stable, the SSH protocol dissector has multiple KEXINIT integer overflows that result in a…
- CVE-2020-15473 — Critical (CVSS 9.1): In nDPI through 3.2, the OpenVPN dissector is vulnerable to a heap-based buffer over-read in ndpi_search_openvpn in…
- CVE-2020-15472 — Critical (CVSS 9.1): In nDPI through 3.2, the H.323 dissector is vulnerable to a heap-based buffer over-read in ndpi_search_h323 in…
- CVE-2020-15471 — Critical (CVSS 9.1): In nDPI through 3.2, the packet parsing code is vulnerable to a heap-based buffer over-read in…
All CVEs affecting Ntop Ndpi →
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