CVE-2016-11021

CRITICALNVD 7.29.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-03-25), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 7.2 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 3 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictMitigate nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV) — the reason this is sooner than the SSVC decision on this page at low or medium mission impact
CISA-KEV: ExploitedEPSS PROB: 69%CVSS: 7.2Exploit: MetasploitExposed services: Not assessed

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

setSystemCommand on D-Link DCS-930L devices before 2.12 allows a remote attacker to execute code via an OS command in the SystemCommand parameter.

CVSS v3
7.2
EG Score
9.0CRITICALhigh confidence
EG Risk
81
EG Risk 81/100

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 (value × EchelonGraph’s weight)
Severity90% × 45%
The EG Score, 9.0 of 10.
Exploitation100% × 40%
Fixed at 100% for a CISA KEV listing: EchelonGraph's rule.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Attend at medium and Act at high mission impact.
Exploitation active (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low, sooner than that at medium and as soon as possible at high mission impact, and watch the vendor's advisory for the fix.
EPSS PROB
69%
EPSS %ILE
99th
KEV
⚠ Exploited

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Attend at medium and Act at high mission impact.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low, sooner than that at medium and as soon as possible at high mission impact, and watch the vendor's advisory for the fix.

Exploitation active (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

Published

March 9, 2020

Last Modified

November 5, 2025

Advisory Details (2)

Auto-updated Jun 11, 2026
⚠️ Actively exploited (CISA KEV). No fix on record yet. Sources: cisa.
cisa🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-11021
generic

D-Link DCS-930L - (Authenticated) Remote Command Execution (Metasploit) - Hardware remote Exploit

https://www.exploit-db.com/exploits/39437

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 48× in last 7d / 225× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 959 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 859 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-11 13:18 UTCEG score recompute
  2. 2026-10-11 13:17 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  3. 2026-10-11 09:08 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  4. 2026-10-11 05:00 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  5. 2026-10-11 00:51 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  6. 2026-10-10 20:43 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  7. 2026-10-10 16:36 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  8. 2026-10-10 12:28 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  9. 2026-10-10 08:22 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  10. 2026-10-10 04:16 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  11. 2026-10-10 00:09 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  12. 2026-10-09 20:02 UTCEG score recompute
  13. 2026-10-09 20:02 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  14. 2026-10-09 20:01 UTCEPSS rescoreEPSS 69% · 99th percentile
  15. 2026-10-09 15:55 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  16. 2026-10-09 11:48 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  17. 2026-10-09 07:42 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  18. 2026-10-09 03:34 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  19. 2026-10-08 23:28 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  20. 2026-10-08 19:22 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  21. 2026-10-08 15:15 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  22. 2026-10-08 11:09 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  23. 2026-10-08 07:02 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  24. 2026-10-08 02:56 UTCEG score recompute
  25. 2026-10-08 02:56 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
Show 75 more
  1. 2026-10-07 23:40 UTCEPSS rescoreEPSS 69% · 99th percentile
  2. 2026-10-07 22:49 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  3. 2026-10-07 18:43 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  4. 2026-10-07 14:36 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  5. 2026-10-07 10:30 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  6. 2026-10-07 06:24 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  7. 2026-10-07 02:18 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  8. 2026-10-06 22:11 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  9. 2026-10-06 18:05 UTCEG score recompute
  10. 2026-10-06 18:05 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  11. 2026-10-06 15:11 UTCEPSS rescoreEPSS 69% · 99th percentile
  12. 2026-10-06 13:59 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  13. 2026-10-06 09:52 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  14. 2026-10-06 05:45 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  15. 2026-10-06 01:39 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  16. 2026-10-05 21:33 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  17. 2026-10-05 17:24 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  18. 2026-10-05 13:18 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  19. 2026-10-05 09:11 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  20. 2026-10-05 05:02 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  21. 2026-10-05 00:55 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  22. 2026-10-04 20:46 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  23. 2026-10-04 16:40 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  24. 2026-10-04 12:34 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  25. 2026-10-04 08:27 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  26. 2026-10-04 04:21 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  27. 2026-10-04 00:15 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  28. 2026-10-03 20:09 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  29. 2026-10-03 16:02 UTCEG score recompute
  30. 2026-10-03 16:02 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  31. 2026-10-03 14:21 UTCEPSS rescoreEPSS 69% · 99th percentile
  32. 2026-10-03 11:56 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  33. 2026-10-03 07:49 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  34. 2026-10-03 03:41 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  35. 2026-10-02 23:33 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  36. 2026-10-02 19:27 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  37. 2026-10-02 15:20 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  38. 2026-10-02 11:12 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  39. 2026-10-02 07:05 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  40. 2026-10-02 02:58 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  41. 2026-10-01 22:51 UTCEG score recompute
  42. 2026-10-01 22:51 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  43. 2026-10-01 19:43 UTCEPSS rescoreEPSS 69% · 99th percentile
  44. 2026-10-01 18:44 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  45. 2026-10-01 14:36 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  46. 2026-10-01 10:30 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  47. 2026-10-01 06:24 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  48. 2026-10-01 02:18 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  49. 2026-09-30 22:12 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  50. 2026-09-30 18:06 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  51. 2026-09-30 13:58 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  52. 2026-09-30 09:52 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  53. 2026-09-30 05:46 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  54. 2026-09-30 01:37 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  55. 2026-09-29 21:30 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  56. 2026-09-29 17:23 UTCEG score recompute
  57. 2026-09-29 17:22 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  58. 2026-09-29 13:13 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  59. 2026-09-29 09:05 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  60. 2026-09-29 04:55 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  61. 2026-09-29 00:49 UTCEG score recompute
  62. 2026-09-29 00:49 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  63. 2026-09-28 20:43 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  64. 2026-09-28 16:36 UTCEG score recompute
  65. 2026-09-28 16:36 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  66. 2026-09-28 13:45 UTCEPSS rescoreEPSS 69% · 99th percentile
  67. 2026-09-28 12:29 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  68. 2026-09-28 08:22 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  69. 2026-09-28 04:13 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  70. 2026-09-28 00:06 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  71. 2026-09-27 21:51 UTCCISA KEV update
  72. 2026-09-27 19:59 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  73. 2026-09-27 15:52 UTCEG score recompute
  74. 2026-09-27 15:52 UTCGHSA enrichmentGHSA-q7vj-25p7-w99v · GitHub severity HIGH · GitHub CVSS 7.2
  75. 2026-09-27 13:40 UTCEPSS rescoreEPSS 69% · 99th percentile

Publicly available exploits

(1 reference)

Public exploit code is referenced for this CVE (1 Metasploit module). Defenders should treat patch urgency accordingly.

  • Metasploitexploit/linux/http/dlink_dcs_930l_authenticated_remote_command_execution✓ verified
    Published Feb 9, 2016

    D-Link DCS-930L Authenticated Remote Command Execution

    Open source ↗

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2016-11021?
CVE-2016-11021 is a critical vulnerability published on March 9, 2020. setSystemCommand on D-Link DCS-930L devices before 2.12 allows a remote attacker to execute code via an OS command in the SystemCommand parameter.
When was the CVE record for CVE-2016-11021 published?
The CVE record for CVE-2016-11021 was published on March 9, 2020. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of November 5, 2025; the record at its source may have been updated since.
Is CVE-2016-11021 actively exploited?
Yes. CISA added CVE-2016-11021 to the Known Exploited Vulnerabilities catalog on March 25, 2022, affecting D-Link DCS-930L Devices. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate attention. No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation, and watch the vendor's advisory for the fix.
What is the CVSS score of CVE-2016-11021?
CVE-2016-11021 has a CVSS v3 base score of 7.2 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0 (CRITICAL).
Which products are affected by CVE-2016-11021?
CVE-2016-11021 affects D-Link DCS-930L Devices.
How do I remediate CVE-2016-11021?
No fix for CVE-2016-11021 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix.

Dependency Blast Radius

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