CVE-2020-8864

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 12.3%, top 6% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
8.8
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 80%
CISA-KEV: Not listedEPSS: 80%CVSS: 8.8Exploit: NoneExposed: 0

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

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-867, DIR-878, and DIR-882 routers with firmware 1.10B04. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of HNAP login requests. The issue results from the lack of proper handling of empty passwords. An attacker can leverage this vulnerability to execute arbitrary code on the router. Was ZDI-CAN-9471.

CVSS v3
8.8
EG Score
8.8(medium)
EPSS
99.6%
KEV
Not listed

Published

March 23, 2020

Last Modified

November 21, 2024

References (4)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 22× 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. 2026-07-22 14:05 UTCEPSS rescore
  2. 2026-07-21 15:22 UTCEPSS rescore
  3. 2026-07-21 15:22 UTCEPSS rescore
  4. 2026-07-19 14:28 UTCEPSS rescore
  5. 2026-07-19 14:28 UTCEPSS rescore
  6. 2026-07-15 16:55 UTCEPSS rescore
  7. 2026-07-15 16:55 UTCEPSS rescore
  8. 2026-07-12 05:44 UTCEPSS rescore
  9. 2026-07-12 05:44 UTCEPSS rescore
  10. 2026-07-08 15:12 UTCEPSS rescore
  11. 2026-07-05 02:28 UTCEPSS rescore
  12. 2026-07-05 02:28 UTCEPSS rescore
  13. 2026-07-02 16:57 UTCEPSS rescore
  14. 2026-07-01 15:03 UTCEPSS rescore
  15. 2026-06-28 04:54 UTCEPSS rescore
  16. 2026-06-28 04:54 UTCEPSS rescore
  17. 2026-06-25 13:48 UTCEPSS rescore
  18. 2026-06-25 13:48 UTCEPSS rescore
  19. 2026-06-24 14:03 UTCEPSS rescore
  20. 2026-06-24 14:03 UTCEPSS rescore
  21. 2026-06-23 21:31 UTCEPSS rescore
  22. 2026-06-23 21:31 UTCEPSS rescore
  23. 2026-06-21 14:54 UTCEPSS rescore
  24. 2026-06-21 14:54 UTCEPSS rescore
  25. 2026-06-21 01:57 UTCEPSS rescore
Show 42 more
  1. 2026-06-21 01:57 UTCEPSS rescore
  2. 2026-06-17 17:50 UTCEPSS rescore
  3. 2026-06-15 17:46 UTCEPSS rescore
  4. 2026-06-14 23:15 UTCEPSS rescore
  5. 2026-06-13 22:58 UTCEPSS rescore
  6. 2026-06-13 22:58 UTCEPSS rescore
  7. 2026-06-12 23:10 UTCEPSS rescore
  8. 2026-06-12 23:10 UTCEPSS rescore
  9. 2026-06-11 13:58 UTCEPSS rescore
  10. 2026-06-11 13:58 UTCEPSS rescore
  11. 2026-06-10 22:16 UTCEPSS rescore
  12. 2026-06-10 13:20 UTCEPSS rescore
  13. 2026-06-08 14:15 UTCEPSS rescore
  14. 2026-06-07 15:23 UTCEPSS rescore
  15. 2026-06-07 15:23 UTCEPSS rescore
  16. 2026-06-06 13:46 UTCEPSS rescore
  17. 2026-06-06 13:46 UTCEPSS rescore
  18. 2026-06-06 13:46 UTCEPSS rescore
  19. 2026-06-05 22:45 UTCEPSS rescore
  20. 2026-06-05 22:45 UTCEPSS rescore
  21. 2026-06-05 06:08 UTCEPSS rescore
  22. 2026-06-05 06:08 UTCEPSS rescore
  23. 2026-06-04 13:10 UTCEPSS rescore
  24. 2026-06-04 13:10 UTCEPSS rescore
  25. 2026-06-02 20:11 UTCEPSS rescore
  26. 2026-06-02 20:11 UTCEPSS rescore
  27. 2026-06-01 13:50 UTCEPSS rescore
  28. 2026-05-31 22:29 UTCEPSS rescore
  29. 2026-05-31 22:29 UTCEPSS rescore
  30. 2026-05-31 00:15 UTCEPSS rescore
  31. 2026-05-31 00:15 UTCEPSS rescore
  32. 2026-05-29 13:42 UTCEPSS rescore
  33. 2026-05-28 13:43 UTCEPSS rescore
  34. 2026-05-28 13:43 UTCEPSS rescore
  35. 2026-05-27 13:39 UTCEPSS rescore
  36. 2026-05-27 13:39 UTCEPSS rescore
  37. 2026-05-27 06:04 UTCEG score recompute
  38. 2026-05-27 06:04 UTCGHSA enrichment
  39. 2026-05-26 13:42 UTCEPSS rescore
  40. 2026-05-26 13:42 UTCEPSS rescore
  41. 2026-05-26 07:17 UTCEPSS rescore
  42. 2026-05-26 07:17 UTCEPSS rescore

Frequently asked(5)

What is CVE-2020-8864?
CVE-2020-8864 is a high vulnerability published on March 23, 2020. This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-867, DIR-878, and DIR-882 routers with firmware 1.10B04. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of HNAP login…
When was CVE-2020-8864 disclosed?
CVE-2020-8864 was first published in the National Vulnerability Database on March 23, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-8864 actively exploited?
CVE-2020-8864 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2020-8864?
CVE-2020-8864 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2020-8864?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-8864, 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

Explore the affected products and dependency analysis for CVE-2020-8864

Explore →

Is Your Infrastructure Affected by CVE-2020-8864?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs