CVE-2020-15471
CVE-2020-15471 is a critical-severity vulnerability in Ntop Ndpi with a CVSS 3.x base score of 9.1. 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-125.
Key facts
- Severity: Critical (CVSS 3.x base score 9.1)
- CVSS v2: 6.4
- EPSS exploit prediction: 1% (67th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-125
- Affected product: Ntop Ndpi
- Published:
- Last modified:
Description
In nDPI through 3.2, the packet parsing code is vulnerable to a heap-based buffer over-read in ndpi_parse_packet_line_info in lib/ndpi_main.c.
Frequently asked questions
- What is CVE-2020-15471?
- In nDPI through 3.2, the packet parsing code is vulnerable to a heap-based buffer over-read in ndpi_parse_packet_line_info in lib/ndpi_main.c.
- How severe is CVE-2020-15471?
- CVE-2020-15471 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.
- Is CVE-2020-15471 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-15471?
- CVE-2020-15471 affects Ntop Ndpi. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-15471?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2020-15471 published?
- CVE-2020-15471 was published on 2020-07-01 and last updated on 2026-06-17.
References
- https://github.com/fuzzing2026/CVE-PoCs/tree/main/ndpi-CVE-2020-15471
- https://github.com/ntop/nDPI/commit/61066fb106efa6d3d95b67e47b662de208b2b622
Affected products (1)
- cpe:2.3:a:ntop:ndpi:*:*:*:*:*:*:*:*
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-2021-36082 — High (CVSS 8.8): ntop nDPI 3.4 has a stack-based buffer overflow in processClientServerHello.
All CVEs affecting Ntop Ndpi →
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