CVE-2026-15486

MEDIUMPre-NVD 6.36.3
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 6.3 from GitHub Security Advisory published 2026-07-12. A secondary CVSS source baseline 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
6.3EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1.8%CVSS: 6.3Exploit: None knownExposed services: Not assessed

A fix is referenced (a reference tagged "Patch", often a source commit), but no release containing it is confirmed — find the release that contains it; until it is applied, mitigate (WAF / firewall / segmentation).

A vulnerability has been found in TRENDnet TEW-821DAP 1.11B03. This affects the function sub_42026C of the file /goform/tools_ddns of the component Firmware Update Handler. Such manipulation of the argument hostname/username/password leads to os command injection. The attack can be launched remotely. The vendor explains: "We are unable to confirm the existence of the vulnerabilities for (...) TEW-821DAP (v1.0R) as these items have been EOL. " This vulnerability only affects products that are no longer supported by the maintainer.

CVSS v3
6.3
EG Score
6.3MEDIUMmedium confidence
EG Risk
29
EG Risk 29/100

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)
Severity63% × 45%
The EG Score, 6.3 of 10.
Exploitation1.8% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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: A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines; until then, restrict network exposure of the affected system or apply the vendor's mitigation.
EPSS PROB
1.8%
EPSS %ILE
77th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

July 12, 2026

Last Modified

July 13, 2026

Advisory Details (1)

Auto-updated Jul 12, 2026
Fix referenced — no release confirmed yet.
Web page

IOT_Firmware_Update/Trendnet/TEW-821DAP_CI4.md at main · IOTRes/IOT_Firmware_Update · GitHub

https://github.com/IOTRes/IOT_Firmware_Update/blob/main/Trendnet/TEW-821DAP_CI4.md

Vendor Advisories for CVE-2026-15486(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 35× 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 177 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 77 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-14 16:32 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  2. 2026-10-13 16:33 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  3. 2026-10-12 16:33 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  4. 2026-10-12 16:31 UTCEG score recompute
  5. 2026-10-11 20:10 UTCEG score recompute
  6. 2026-10-11 17:22 UTCEG score recompute
  7. 2026-10-11 14:55 UTCEG score recompute
  8. 2026-10-11 13:48 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  9. 2026-10-10 19:59 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  10. 2026-10-09 20:06 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  11. 2026-10-08 17:11 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  12. 2026-10-07 23:47 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  13. 2026-10-06 15:17 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  14. 2026-10-05 17:42 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  15. 2026-10-04 23:21 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  16. 2026-10-03 14:25 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  17. 2026-10-01 19:49 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  18. 2026-10-01 14:51 UTCEG score recompute
  19. 2026-10-01 14:51 UTCGHSA enrichmentGHSA-xf2v-w36q-24wf · GitHub CVSS 6.3
  20. 2026-09-30 15:02 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  21. 2026-09-29 15:20 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  22. 2026-09-28 13:51 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  23. 2026-09-28 09:40 UTCEG score recompute
  24. 2026-09-28 09:40 UTCGHSA enrichmentGHSA-xf2v-w36q-24wf · GitHub CVSS 6.3
  25. 2026-09-27 13:47 UTCEPSS rescoreEPSS 1.8% · 77th percentile
Show 75 more
  1. 2026-09-26 15:58 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  2. 2026-09-24 10:27 UTCEG score recompute
  3. 2026-09-24 10:27 UTCGHSA enrichmentGHSA-xf2v-w36q-24wf · GitHub CVSS 6.3
  4. 2026-09-23 05:39 UTCEG score recompute
  5. 2026-09-23 05:39 UTCGHSA enrichmentGHSA-xf2v-w36q-24wf · GitHub CVSS 6.3
  6. 2026-09-18 19:27 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  7. 2026-09-18 05:10 UTCEG score recompute
  8. 2026-09-18 05:10 UTCGHSA enrichmentGHSA-xf2v-w36q-24wf · GitHub CVSS 6.3
  9. 2026-09-16 14:07 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  10. 2026-09-16 05:14 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  11. 2026-09-14 07:42 UTCGHSA enrichmentGHSA-xf2v-w36q-24wf · GitHub CVSS 6.3
  12. 2026-09-13 08:06 UTCEG score recompute
  13. 2026-09-13 08:06 UTCGHSA enrichmentGHSA-xf2v-w36q-24wf · GitHub CVSS 6.3
  14. 2026-09-12 15:00 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  15. 2026-09-12 02:07 UTCEG score recompute
  16. 2026-09-12 02:07 UTCGHSA enrichmentGHSA-xf2v-w36q-24wf · GitHub CVSS 6.3
  17. 2026-09-11 14:52 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  18. 2026-09-11 09:36 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  19. 2026-09-10 09:34 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  20. 2026-09-08 22:00 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  21. 2026-09-08 02:21 UTCEG score recompute
  22. 2026-09-08 02:21 UTCGHSA enrichmentGHSA-xf2v-w36q-24wf · GitHub CVSS 6.3
  23. 2026-09-07 16:01 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  24. 2026-09-06 13:47 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  25. 2026-09-05 21:34 UTCEG score recompute
  26. 2026-09-05 21:34 UTCGHSA enrichmentGHSA-xf2v-w36q-24wf · GitHub CVSS 6.3
  27. 2026-09-04 05:06 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  28. 2026-09-02 14:11 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  29. 2026-09-01 13:53 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  30. 2026-09-01 04:39 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  31. 2026-08-30 19:17 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  32. 2026-08-30 05:47 UTCEG score recompute
  33. 2026-08-30 05:47 UTCGHSA enrichmentGHSA-xf2v-w36q-24wf · GitHub CVSS 6.3
  34. 2026-08-30 01:22 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  35. 2026-08-28 21:41 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  36. 2026-08-27 21:38 UTCEG score recompute
  37. 2026-08-27 21:38 UTCGHSA enrichmentGHSA-xf2v-w36q-24wf · GitHub CVSS 6.3
  38. 2026-08-27 14:25 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  39. 2026-08-26 14:46 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  40. 2026-08-26 04:40 UTCEG score recompute
  41. 2026-08-26 04:40 UTCGHSA enrichmentGHSA-xf2v-w36q-24wf · GitHub CVSS 6.3
  42. 2026-08-25 13:48 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  43. 2026-08-25 04:35 UTCEG score recompute
  44. 2026-08-25 04:35 UTCGHSA enrichmentGHSA-xf2v-w36q-24wf · GitHub CVSS 6.3
  45. 2026-08-24 04:59 UTCGHSA enrichmentGHSA-xf2v-w36q-24wf · GitHub CVSS 6.3
  46. 2026-08-23 05:23 UTCEG score recompute
  47. 2026-08-23 05:23 UTCGHSA enrichmentGHSA-xf2v-w36q-24wf · GitHub CVSS 6.3
  48. 2026-08-23 00:19 UTCEPSS rescoreEPSS 1.1% · 62nd percentile
  49. 2026-08-22 05:46 UTCEG score recompute
  50. 2026-08-22 05:46 UTCGHSA enrichmentGHSA-xf2v-w36q-24wf · GitHub CVSS 6.3
  51. 2026-08-21 23:49 UTCEPSS rescoreEPSS 1.1% · 62nd percentile
  52. 2026-08-21 06:09 UTCEG score recompute
  53. 2026-08-21 06:09 UTCGHSA enrichmentGHSA-xf2v-w36q-24wf · GitHub CVSS 6.3
  54. 2026-08-20 22:55 UTCEPSS rescoreEPSS 1.1% · 62nd percentile
  55. 2026-08-20 06:32 UTCEG score recompute
  56. 2026-08-20 06:32 UTCGHSA enrichmentGHSA-xf2v-w36q-24wf · GitHub CVSS 6.3
  57. 2026-08-19 17:03 UTCEPSS rescoreEPSS 1.1% · 62nd percentile
  58. 2026-08-19 06:55 UTCEG score recompute
  59. 2026-08-19 06:54 UTCGHSA enrichmentGHSA-xf2v-w36q-24wf · GitHub CVSS 6.3
  60. 2026-08-18 13:48 UTCEPSS rescoreEPSS 1.1% · 62nd percentile
  61. 2026-08-18 06:30 UTCEG score recompute
  62. 2026-08-18 06:30 UTCGHSA enrichmentGHSA-xf2v-w36q-24wf · GitHub CVSS 6.3
  63. 2026-08-17 13:47 UTCEPSS rescoreEPSS 1.1% · 62nd percentile
  64. 2026-08-17 06:53 UTCEG score recompute
  65. 2026-08-17 06:53 UTCGHSA enrichmentGHSA-xf2v-w36q-24wf · GitHub CVSS 6.3
  66. 2026-08-16 14:56 UTCEPSS rescoreEPSS 1.1% · 62nd percentile
  67. 2026-08-16 07:17 UTCEG score recompute
  68. 2026-08-16 07:17 UTCGHSA enrichmentGHSA-xf2v-w36q-24wf · GitHub CVSS 6.3
  69. 2026-08-16 02:14 UTCEPSS rescoreEPSS 1.1% · 62nd percentile
  70. 2026-08-15 07:41 UTCEG score recompute
  71. 2026-08-15 07:41 UTCGHSA enrichmentGHSA-xf2v-w36q-24wf · GitHub CVSS 6.3
  72. 2026-08-15 01:30 UTCEPSS rescoreEPSS 1.1% · 61st percentile
  73. 2026-08-14 07:04 UTCEG score recompute
  74. 2026-08-14 07:04 UTCGHSA enrichmentGHSA-xf2v-w36q-24wf · GitHub CVSS 6.3
  75. 2026-08-13 22:00 UTCEPSS rescoreEPSS 1.1% · 61st percentile

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-15486?
CVE-2026-15486 is a medium-severity vulnerability; its CVE record was published on July 12, 2026. A vulnerability has been found in TRENDnet TEW-821DAP 1.11B03. This affects the function sub42026C of the file /goform/toolsddns of the component Firmware Update Handler. Such manipulation of the argument hostname/username/password leads to os command injection. The attack can be launched remotely.…
When was the CVE record for CVE-2026-15486 published?
The CVE record for CVE-2026-15486 was published on July 12, 2026. 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 July 13, 2026; the record at its source may have been updated since.
Is CVE-2026-15486 actively exploited?
CVE-2026-15486 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.8% probability of exploitation in the next 30 days (77th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-15486?
CVE-2026-15486 has a CVSS base score of 6.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-15486?
A fix for CVE-2026-15486 is referenced (a reference tagged "Patch", often a source commit), but EchelonGraph has no release containing it on record. Check that reference and the vendor's advisory for a release that contains the fix and update to it; until then, restrict network exposure of the affected system or apply the vendor's mitigation. The vendor advisories EchelonGraph has for CVE-2026-15486 are linked in the Vendor Advisories panel on this page.

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