CVE-2021-46315

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 6.6%, top 7% 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
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 7%CVSS: 9.8Exploit: None knownExposed: 0

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

Remote Command Execution (RCE) vulnerability exists in HNAP1/control/SetWizardConfig.php in D-Link Router DIR-846 DIR846A1_FW100A43.bin and DIR846enFW100A53DLA-Retail.bin. Malicoius users can use this vulnerability to use "\ " or backticks in the shell metacharacters in the ssid0 or ssid1 parameters to cause arbitrary command execution. Since CVE-2019-17510 vulnerability has not been patched and improved www/hnap1/control/setwizardconfig.php, can also use line breaks and backquotes to bypass.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
51(Track)
EG Risk 51/100SSVC: 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%
Exploitation7% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
7%
EPSS %ILE
93%
KEV
Not listed

Published

February 17, 2022

Last Modified

November 21, 2024

Advisory Details (2)

Auto-updated Sep 4, 2026
No patch confirmed yet.
generic

Security Bulletin | D-Link

https://www.dlink.com/en/security-bulletin/
generic

DIR-846_Command_Injection/DIR-846_Command_Injection1.md at main · doudoudedi/DIR-846_Command_Injection · GitHub

https://github.com/doudoudedi/DIR-846_Command_Injection/blob/main/DIR-846_Command_Injection1.md

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 24× 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.

Showing the most recent 100 of 137 total refreshes for this CVE.

  1. 2026-09-07 15:58 UTCEPSS rescore
  2. 2026-09-06 13:45 UTCEPSS rescore
  3. 2026-09-05 15:25 UTCEPSS rescore
  4. 2026-09-04 13:57 UTCEPSS rescore
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  22. 2026-08-13 21:57 UTCEPSS rescore
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  24. 2026-08-11 13:38 UTCEPSS rescore
  25. 2026-08-09 13:44 UTCEPSS rescore
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  1. 2026-08-08 16:34 UTCEPSS rescore
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  3. 2026-08-06 13:44 UTCEPSS rescore
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  10. 2026-07-30 16:25 UTCEPSS rescore
  11. 2026-07-30 01:28 UTCEPSS rescore
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  17. 2026-07-23 14:16 UTCEPSS rescore
  18. 2026-07-23 02:06 UTCEG score recompute
  19. 2026-07-22 22:52 UTCEG score recompute
  20. 2026-07-22 14:06 UTCEPSS rescore
  21. 2026-07-21 15:22 UTCEPSS rescore
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  23. 2026-07-20 17:05 UTCEPSS rescore
  24. 2026-07-19 14:29 UTCEPSS rescore
  25. 2026-07-19 02:27 UTCEPSS rescore
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  27. 2026-07-18 10:02 UTCEPSS rescore
  28. 2026-07-16 17:00 UTCEPSS rescore
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  30. 2026-07-15 16:55 UTCEPSS rescore
  31. 2026-07-15 01:58 UTCEPSS rescore
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  33. 2026-07-13 22:27 UTCEPSS rescore
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  36. 2026-07-12 05:44 UTCEPSS rescore
  37. 2026-07-11 08:25 UTCEPSS rescore
  38. 2026-07-09 19:07 UTCEPSS rescore
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  40. 2026-07-08 15:12 UTCEPSS rescore
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  42. 2026-07-07 13:43 UTCEPSS rescore
  43. 2026-07-06 16:25 UTCEPSS rescore
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  45. 2026-07-06 02:21 UTCEPSS rescore
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  47. 2026-07-05 02:28 UTCEPSS rescore
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  49. 2026-07-04 06:29 UTCEPSS rescore
  50. 2026-07-04 06:29 UTCEPSS rescore
  51. 2026-07-01 15:04 UTCEPSS rescore
  52. 2026-06-30 23:20 UTCEPSS rescore
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  59. 2026-06-25 13:48 UTCEPSS rescore
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  61. 2026-06-24 14:03 UTCEPSS rescore
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  63. 2026-06-23 21:31 UTCEPSS rescore
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  65. 2026-06-22 14:24 UTCEPSS rescore
  66. 2026-06-21 14:55 UTCEPSS rescore
  67. 2026-06-21 01:58 UTCEPSS rescore
  68. 2026-06-21 01:58 UTCEPSS rescore
  69. 2026-06-19 19:24 UTCEPSS rescore
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  71. 2026-06-18 17:51 UTCEPSS rescore
  72. 2026-06-18 17:51 UTCEPSS rescore
  73. 2026-06-17 17:51 UTCEPSS rescore
  74. 2026-06-17 17:51 UTCEPSS rescore
  75. 2026-06-16 17:51 UTCEPSS rescore

Frequently asked(5)

What is CVE-2021-46315?
CVE-2021-46315 is a critical vulnerability published on February 17, 2022. Remote Command Execution (RCE) vulnerability exists in HNAP1/control/SetWizardConfig.php in D-Link Router DIR-846 DIR846A1_FW100A43.bin and DIR846enFW100A53DLA-Retail.bin. Malicoius users can use this vulnerability to use "\ " or backticks in the shell metacharacters in the ssid0 or ssid1…
When was CVE-2021-46315 disclosed?
CVE-2021-46315 was first published in the National Vulnerability Database on February 17, 2022, 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-2021-46315 actively exploited?
CVE-2021-46315 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 7% probability of exploitation in the next 30 days, which ranks it in the top 6.6% of all scored CVEs.
What is the CVSS score of CVE-2021-46315?
CVE-2021-46315 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2021-46315?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-46315, 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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