CVE-2026-86098

HIGHPre-NVD 7.47.4—
EchelonGraph scoreHIGH confidence

Score 7.4 from GitHub Security Advisory (severity: HIGH) published 2026-09-05. a secondary CVSS source baseline 7.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.4Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

ntop nDPI versions before 6.0 contain a heap buffer overflow vulnerability in the ndpi_json_string_escape function that writes beyond caller-supplied buffer boundaries. Attackers can trigger the overflow by supplying crafted network packet data including TLS SNI, HTTP headers, or DNS names that reach the vulnerable function, causing heap corruption.

CVSS v3
7.4
EG Score
7.4(high)
EG Risk
33(Track)
EG Risk 33/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity74% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
29%
KEV
Not listed

Published

September 4, 2026

Last Modified

September 14, 2026

Advisory Details (4)

Auto-updated Sep 4, 2026
Patch available. Sources: github_commit.
generic

ntop nDPI before 6.0 Heap Buffer Overflow via ndpi_json_string_escape | Advisories | VulnCheck

https://www.vulncheck.com/advisories/ntop-ndpi-before-6.0-heap-buffer-overflow-via-ndpi-json-string-escape
generic

nDPI/src/lib/ndpi_serializer.c at 5.0 · ntop/nDPI · GitHub

https://github.com/ntop/nDPI/blob/5.0/src/lib/ndpi_serializer.c
generic

GitHub - ntop/nDPI: Open Source Deep Packet Inspection Software Toolkit · GitHub

https://github.com/ntop/nDPI
github_commit Patch Available

commit 94e82c1de123 (ntop/nDPI)

Patch available: ntop/nDPI 6.0 (contains commit 94e82c1de123)

https://github.com/ntop/nDPI/commit/94e82c1de12323d992895830231865736a8abf2c

Vendor Advisories for CVE-2026-86098(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
ndpi4.2-2, 4.2-2.1, 4.2-2.1~exp1——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
ndpi4.2-2.1——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
ndpi4.2-2.1——

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 45× in last 7d / 77× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-19 13:14 UTCVendor advisory
  2. 2026-09-19 13:14 UTCGHSA enrichment
  3. 2026-09-19 00:48 UTCEG score recompute
  4. 2026-09-19 00:48 UTCVendor advisory
  5. 2026-09-19 00:48 UTCGHSA enrichment
  6. 2026-09-18 19:28 UTCEPSS rescore
  7. 2026-09-18 12:23 UTCVendor advisory
  8. 2026-09-18 12:23 UTCGHSA enrichment
  9. 2026-09-17 23:56 UTCEG score recompute
  10. 2026-09-17 23:56 UTCVendor advisory
  11. 2026-09-17 23:56 UTCGHSA enrichment
  12. 2026-09-17 19:32 UTCEPSS rescore
  13. 2026-09-17 10:57 UTCVendor advisory
  14. 2026-09-17 10:57 UTCGHSA enrichment
  15. 2026-09-16 22:31 UTCEG score recompute
  16. 2026-09-16 22:31 UTCVendor advisory
  17. 2026-09-16 22:31 UTCGHSA enrichment
  18. 2026-09-16 14:09 UTCEPSS rescore
  19. 2026-09-16 09:47 UTCEG score recompute
  20. 2026-09-16 09:47 UTCVendor advisory
  21. 2026-09-16 09:47 UTCGHSA enrichment
  22. 2026-09-16 05:15 UTCEPSS rescore
  23. 2026-09-15 21:21 UTCVendor advisory
  24. 2026-09-15 21:21 UTCGHSA enrichment
  25. 2026-09-15 08:52 UTCEG score recompute
Show 52 more
  1. 2026-09-15 08:52 UTCVendor advisory
  2. 2026-09-15 08:52 UTCGHSA enrichment
  3. 2026-09-15 03:12 UTCEPSS rescore
  4. 2026-09-15 03:12 UTCEPSS rescore
  5. 2026-09-14 20:27 UTCEG score recompute
  6. 2026-09-14 20:27 UTCVendor advisory
  7. 2026-09-14 20:27 UTCGHSA enrichment
  8. 2026-09-14 19:40 UTCEG score recompute
  9. 2026-09-14 19:40 UTCVendor advisory
  10. 2026-09-14 19:40 UTCGHSA enrichment
  11. 2026-09-14 09:09 UTCVendor advisory
  12. 2026-09-14 09:09 UTCGHSA enrichment
  13. 2026-09-13 20:44 UTCEG score recompute
  14. 2026-09-13 20:44 UTCVendor advisory
  15. 2026-09-13 20:44 UTCGHSA enrichment
  16. 2026-09-13 08:18 UTCVendor advisory
  17. 2026-09-13 08:18 UTCGHSA enrichment
  18. 2026-09-12 19:53 UTCEG score recompute
  19. 2026-09-12 19:53 UTCVendor advisory
  20. 2026-09-12 19:53 UTCGHSA enrichment
  21. 2026-09-12 07:27 UTCVendor advisory
  22. 2026-09-12 07:27 UTCGHSA enrichment
  23. 2026-09-11 19:02 UTCEG score recompute
  24. 2026-09-11 19:02 UTCVendor advisory
  25. 2026-09-11 19:01 UTCGHSA enrichment
  26. 2026-09-11 14:53 UTCEPSS rescore
  27. 2026-09-11 14:53 UTCEPSS rescore
  28. 2026-09-11 06:26 UTCGHSA enrichment
  29. 2026-09-10 18:00 UTCEG score recompute
  30. 2026-09-10 18:00 UTCGHSA enrichment
  31. 2026-09-10 05:34 UTCGHSA enrichment
  32. 2026-09-09 17:08 UTCVendor advisory
  33. 2026-09-09 17:08 UTCGHSA enrichment
  34. 2026-09-09 04:42 UTCEG score recompute
  35. 2026-09-09 04:42 UTCGHSA enrichment
  36. 2026-09-08 22:01 UTCEPSS rescore
  37. 2026-09-08 16:16 UTCGHSA enrichment
  38. 2026-09-08 02:48 UTCEG score recompute
  39. 2026-09-08 02:47 UTCGHSA enrichment
  40. 2026-09-07 14:22 UTCGHSA enrichment
  41. 2026-09-07 01:14 UTCEG score recompute
  42. 2026-09-07 01:13 UTCGHSA enrichment
  43. 2026-09-06 13:48 UTCEPSS rescore
  44. 2026-09-06 12:46 UTCGHSA enrichment
  45. 2026-09-06 00:21 UTCEG score recompute
  46. 2026-09-06 00:21 UTCGHSA enrichment
  47. 2026-09-05 15:31 UTCEPSS rescore
  48. 2026-09-05 11:54 UTCEG score recompute
  49. 2026-09-05 11:54 UTCGHSA enrichment
  50. 2026-09-04 23:29 UTCEG score recompute
  51. 2026-09-04 22:45 UTCEG score recompute
  52. 2026-09-04 22:44 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-86098?
CVE-2026-86098 is a high vulnerability published on September 4, 2026. ntop nDPI versions before 6.0 contain a heap buffer overflow vulnerability in the ndpijsonstring_escape function that writes beyond caller-supplied buffer boundaries. Attackers can trigger the overflow by supplying crafted network packet data including TLS SNI, HTTP headers, or DNS names that reach…
When was CVE-2026-86098 disclosed?
CVE-2026-86098 was first published in the National Vulnerability Database on September 4, 2026, with the most recent update on September 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-86098 actively exploited?
CVE-2026-86098 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 71.0% of all scored CVEs.
What is the CVSS score of CVE-2026-86098?
CVE-2026-86098 has a CVSS v3 base score of 7.4 (NVD).
How do I remediate CVE-2026-86098?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-86098, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-86098

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