CVE-2026-4213

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 0.7%, top 48% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: None knownExposed: 0

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

A vulnerability was detected in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. This vulnerability affects the function cgi_myfavorite_del_user/cgi_myfavorite_verify of the file /cgi-bin/gui_mgr.cgi. Performing a manipulation results in stack-based buffer overflow. The attack may be initiated remotely. The exploit is now public and may be used.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity98% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
53%
KEV
Not listed

Published

March 16, 2026

Last Modified

June 17, 2026

Advisory Details (3)

Auto-updated Sep 14, 2026
No patch confirmed yet.
generic

Smart Home, SMB and Enterprise solutions | D-Link

https://www.dlink.com/
generic

my_vuln/D-Link8/vuln_163/163.md at main · wudipjq/my_vuln · GitHub

https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_163/163.md
generic

my_vuln/D-Link8/vuln_162/162.md at main · wudipjq/my_vuln · GitHub

https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_162/162.md

Weakness Classification(3)

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

Data Freshness Timeline

(refreshed 4× in last 7d / 21× 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. 2026-09-18 19:28 UTCEPSS rescore
  2. 2026-09-16 14:08 UTCEPSS rescore
  3. 2026-09-16 05:15 UTCEPSS rescore
  4. 2026-09-13 16:47 UTCEPSS rescore
  5. 2026-09-11 14:53 UTCEPSS rescore
  6. 2026-09-10 09:35 UTCEPSS rescore
  7. 2026-09-08 22:01 UTCEPSS rescore
  8. 2026-09-07 16:01 UTCEPSS rescore
  9. 2026-09-06 13:47 UTCEPSS rescore
  10. 2026-09-04 05:06 UTCEPSS rescore
  11. 2026-09-02 14:12 UTCEPSS rescore
  12. 2026-09-01 13:54 UTCEPSS rescore
  13. 2026-09-01 04:40 UTCEPSS rescore
  14. 2026-08-30 19:17 UTCEPSS rescore
  15. 2026-08-30 01:22 UTCEPSS rescore
  16. 2026-08-28 21:41 UTCEPSS rescore
  17. 2026-08-27 14:25 UTCEPSS rescore
  18. 2026-08-26 14:46 UTCEPSS rescore
  19. 2026-08-25 13:49 UTCEPSS rescore
  20. 2026-08-23 00:19 UTCEPSS rescore
  21. 2026-08-21 23:49 UTCEPSS rescore
  22. 2026-08-20 22:55 UTCEPSS rescore
  23. 2026-08-19 17:04 UTCEPSS rescore
  24. 2026-08-18 13:48 UTCEPSS rescore
  25. 2026-08-17 13:47 UTCEPSS rescore
Show 65 more
  1. 2026-08-16 14:56 UTCEPSS rescore
  2. 2026-08-16 11:25 UTCEG score recompute
  3. 2026-08-16 11:25 UTCGHSA enrichment
  4. 2026-08-16 02:14 UTCEPSS rescore
  5. 2026-08-15 01:30 UTCEPSS rescore
  6. 2026-08-15 00:54 UTCGHSA enrichment
  7. 2026-08-14 20:36 UTCGHSA enrichment
  8. 2026-08-14 16:09 UTCGHSA enrichment
  9. 2026-08-14 11:50 UTCGHSA enrichment
  10. 2026-08-14 07:31 UTCEG score recompute
  11. 2026-08-14 07:31 UTCGHSA enrichment
  12. 2026-08-13 22:00 UTCEPSS rescore
  13. 2026-08-13 02:38 UTCGHSA enrichment
  14. 2026-08-12 22:20 UTCEG score recompute
  15. 2026-08-12 22:20 UTCGHSA enrichment
  16. 2026-08-12 13:51 UTCEPSS rescore
  17. 2026-08-12 01:54 UTCGHSA enrichment
  18. 2026-08-11 21:36 UTCEG score recompute
  19. 2026-08-11 21:36 UTCGHSA enrichment
  20. 2026-08-11 09:02 UTCGHSA enrichment
  21. 2026-08-11 04:43 UTCEG score recompute
  22. 2026-08-11 04:43 UTCGHSA enrichment
  23. 2026-08-11 00:00 UTCEPSS rescore
  24. 2026-08-10 12:15 UTCGHSA enrichment
  25. 2026-08-10 06:41 UTCGHSA enrichment
  26. 2026-08-10 02:22 UTCGHSA enrichment
  27. 2026-08-09 22:02 UTCGHSA enrichment
  28. 2026-08-09 17:43 UTCEG score recompute
  29. 2026-08-09 17:43 UTCGHSA enrichment
  30. 2026-08-09 13:46 UTCEPSS rescore
  31. 2026-08-09 13:24 UTCGHSA enrichment
  32. 2026-08-09 07:08 UTCEG score recompute
  33. 2026-08-09 07:08 UTCGHSA enrichment
  34. 2026-08-08 16:37 UTCEPSS rescore
  35. 2026-08-08 11:26 UTCGHSA enrichment
  36. 2026-08-08 06:41 UTCGHSA enrichment
  37. 2026-08-08 02:22 UTCGHSA enrichment
  38. 2026-08-07 22:04 UTCGHSA enrichment
  39. 2026-08-07 17:45 UTCEG score recompute
  40. 2026-08-07 17:45 UTCGHSA enrichment
  41. 2026-08-06 19:40 UTCEG score recompute
  42. 2026-08-06 19:40 UTCGHSA enrichment
  43. 2026-08-06 13:47 UTCEPSS rescore
  44. 2026-08-06 10:29 UTCGHSA enrichment
  45. 2026-08-06 06:05 UTCGHSA enrichment
  46. 2026-08-06 01:46 UTCEG score recompute
  47. 2026-08-06 01:46 UTCGHSA enrichment
  48. 2026-08-05 19:17 UTCEPSS rescore
  49. 2026-08-04 15:10 UTCEPSS rescore
  50. 2026-08-04 10:39 UTCEPSS rescore
  51. 2026-08-04 05:42 UTCGHSA enrichment
  52. 2026-08-04 00:57 UTCEG score recompute
  53. 2026-08-04 00:57 UTCGHSA enrichment
  54. 2026-08-03 10:36 UTCEPSS rescore
  55. 2026-08-03 01:35 UTCGHSA enrichment
  56. 2026-08-02 21:16 UTCGHSA enrichment
  57. 2026-08-02 16:57 UTCEG score recompute
  58. 2026-08-02 16:57 UTCGHSA enrichment
  59. 2026-08-02 02:27 UTCEPSS rescore
  60. 2026-08-01 04:16 UTCEPSS rescore
  61. 2026-07-30 16:28 UTCEPSS rescore
  62. 2026-07-30 01:30 UTCEPSS rescore
  63. 2026-07-28 15:37 UTCEPSS rescore
  64. 2026-07-27 14:43 UTCEG score recompute
  65. 2026-07-27 14:43 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-4213?
CVE-2026-4213 is a critical vulnerability published on March 16, 2026. A vulnerability was detected in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. This vulnerability affects the function…
When was CVE-2026-4213 disclosed?
CVE-2026-4213 was first published in the National Vulnerability Database on March 16, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-4213 actively exploited?
CVE-2026-4213 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 46.8% of all scored CVEs.
What is the CVSS score of CVE-2026-4213?
CVE-2026-4213 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-4213?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-4213, 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.

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