CVE-2026-15469

HIGHPre-NVD 7.77.7—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.7 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 82% 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, secondary
Trending — 3 sources updated this weekElevated
7.7EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.7Exploit: Elevated riskExposed: 0

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

The use of hard-coded cryptographic key vulnerability has been identified in the mesh functionality of Deco XE75 v3, XE5300 v3.6 and WE10800 v3.6.  A shared RSA-512 mesh group private key is present in the affected firmware and is used by the mesh protocol for node authentication.  An attacker who obtains the firmware image and has local network access may be able to authenticate as a mesh node without possessing a device-specific credential.

Successful exploitation may allow an unauthenticated adjacent attacker to impersonate a trusted mesh node and bypass mesh node authentication, which may permit unauthorized changes to device or mesh configuration, affecting confidentiality, integrity and availability.

CVSS v3
7.7
EG Score
7.7(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
Severity77% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
18%
KEV
Not listed

Published

August 24, 2026

Last Modified

August 28, 2026

Advisory Details (5)

Auto-updated Aug 24, 2026
No patch confirmed yet.
generic

Security Advisory: Hard-coded Mesh Group Private Key in Deco XE75, XE5300, and WE10800 (CVE-2026-15469) | TP-Link

https://www.tp-link.com/us/support/faq/5263/
generic

Download for Deco WE10800 | TP-Link

https://www.tp-link.com/us/support/download/deco-we10800/#Firmware
generic

Download for Deco XE5300 | TP-Link

https://www.tp-link.com/us/support/download/deco-xe5300/#Firmware
generic

Download for Deco XE75 | TP-Link

https://www.tp-link.com/en/support/download/deco-xe75/v3.60/#Firmware
generic

Download for Deco XE75 | TP-Link

https://www.tp-link.com/us/support/download/deco-xe75/v3.60/#Firmware

Vendor Advisories for CVE-2026-15469(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 23× in last 7d / 96× 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. 2026-09-19 12:00 UTCGHSA enrichment
  2. 2026-09-18 23:04 UTCEG score recompute
  3. 2026-09-18 23:04 UTCGHSA enrichment
  4. 2026-09-18 19:27 UTCEPSS rescore
  5. 2026-09-18 10:08 UTCGHSA enrichment
  6. 2026-09-17 21:12 UTCEG score recompute
  7. 2026-09-17 21:12 UTCGHSA enrichment
  8. 2026-09-17 03:53 UTCGHSA enrichment
  9. 2026-09-16 14:56 UTCEG score recompute
  10. 2026-09-16 14:56 UTCGHSA enrichment
  11. 2026-09-16 14:07 UTCEPSS rescore
  12. 2026-09-16 05:14 UTCEPSS rescore
  13. 2026-09-16 01:57 UTCGHSA enrichment
  14. 2026-09-15 13:00 UTCEG score recompute
  15. 2026-09-15 13:00 UTCGHSA enrichment
  16. 2026-09-15 00:04 UTCGHSA enrichment
  17. 2026-09-14 11:07 UTCGHSA enrichment
  18. 2026-09-13 22:11 UTCEG score recompute
  19. 2026-09-13 22:11 UTCGHSA enrichment
  20. 2026-09-13 16:46 UTCEPSS rescore
  21. 2026-09-13 09:14 UTCGHSA enrichment
  22. 2026-09-12 20:18 UTCEG score recompute
  23. 2026-09-12 20:18 UTCGHSA enrichment
  24. 2026-09-12 15:00 UTCEPSS rescore
  25. 2026-09-12 07:21 UTCGHSA enrichment
Show 71 more
  1. 2026-09-11 18:24 UTCEG score recompute
  2. 2026-09-11 18:24 UTCGHSA enrichment
  3. 2026-09-11 14:52 UTCEPSS rescore
  4. 2026-09-11 09:36 UTCEPSS rescore
  5. 2026-09-11 05:27 UTCGHSA enrichment
  6. 2026-09-10 16:31 UTCEG score recompute
  7. 2026-09-10 16:31 UTCGHSA enrichment
  8. 2026-09-10 09:34 UTCEPSS rescore
  9. 2026-09-10 03:28 UTCGHSA enrichment
  10. 2026-09-09 14:32 UTCGHSA enrichment
  11. 2026-09-09 01:30 UTCEG score recompute
  12. 2026-09-09 01:30 UTCGHSA enrichment
  13. 2026-09-08 22:00 UTCEPSS rescore
  14. 2026-09-08 04:17 UTCEG score recompute
  15. 2026-09-08 04:17 UTCGHSA enrichment
  16. 2026-09-07 16:01 UTCEPSS rescore
  17. 2026-09-07 15:20 UTCGHSA enrichment
  18. 2026-09-07 00:37 UTCEG score recompute
  19. 2026-09-07 00:37 UTCGHSA enrichment
  20. 2026-09-06 13:47 UTCEPSS rescore
  21. 2026-09-06 11:41 UTCGHSA enrichment
  22. 2026-09-05 22:44 UTCEG score recompute
  23. 2026-09-05 22:44 UTCGHSA enrichment
  24. 2026-09-05 09:48 UTCGHSA enrichment
  25. 2026-09-04 20:51 UTCEG score recompute
  26. 2026-09-04 20:51 UTCGHSA enrichment
  27. 2026-09-04 07:10 UTCEG score recompute
  28. 2026-09-04 07:10 UTCGHSA enrichment
  29. 2026-09-04 05:06 UTCEPSS rescore
  30. 2026-09-03 18:12 UTCGHSA enrichment
  31. 2026-09-03 05:13 UTCGHSA enrichment
  32. 2026-09-02 16:05 UTCEG score recompute
  33. 2026-09-02 16:05 UTCGHSA enrichment
  34. 2026-09-02 14:11 UTCEPSS rescore
  35. 2026-09-02 03:03 UTCGHSA enrichment
  36. 2026-09-01 14:06 UTCEG score recompute
  37. 2026-09-01 14:06 UTCGHSA enrichment
  38. 2026-09-01 13:53 UTCEPSS rescore
  39. 2026-09-01 04:39 UTCEPSS rescore
  40. 2026-09-01 01:03 UTCGHSA enrichment
  41. 2026-08-31 12:05 UTCGHSA enrichment
  42. 2026-08-30 23:07 UTCEG score recompute
  43. 2026-08-30 23:07 UTCGHSA enrichment
  44. 2026-08-30 19:17 UTCEPSS rescore
  45. 2026-08-30 10:10 UTCEG score recompute
  46. 2026-08-30 10:10 UTCGHSA enrichment
  47. 2026-08-30 01:22 UTCEPSS rescore
  48. 2026-08-29 21:13 UTCGHSA enrichment
  49. 2026-08-29 08:17 UTCEG score recompute
  50. 2026-08-29 08:17 UTCGHSA enrichment
  51. 2026-08-28 21:41 UTCEPSS rescore
  52. 2026-08-28 19:19 UTCGHSA enrichment
  53. 2026-08-28 13:10 UTCGHSA enrichment
  54. 2026-08-28 00:12 UTCEG score recompute
  55. 2026-08-28 00:11 UTCGHSA enrichment
  56. 2026-08-27 14:25 UTCEPSS rescore
  57. 2026-08-27 11:14 UTCGHSA enrichment
  58. 2026-08-26 22:18 UTCEG score recompute
  59. 2026-08-26 22:18 UTCGHSA enrichment
  60. 2026-08-26 14:46 UTCEPSS rescore
  61. 2026-08-26 09:21 UTCEG score recompute
  62. 2026-08-26 09:20 UTCGHSA enrichment
  63. 2026-08-25 20:15 UTCEG score recompute
  64. 2026-08-25 20:15 UTCGHSA enrichment
  65. 2026-08-25 13:48 UTCEPSS rescore
  66. 2026-08-25 07:19 UTCGHSA enrichment
  67. 2026-08-24 18:22 UTCEG score recompute
  68. 2026-08-24 17:36 UTCEG score recompute
  69. 2026-08-24 17:19 UTCEG score recompute
  70. 2026-08-24 16:52 UTCEG score recompute
  71. 2026-08-24 16:51 UTCMITRE cvelistV5first tracked

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCtony102741/CVE-2026-15469
    First seen Aug 25, 2026

    CVE-2026-15469 — Hard-coded RSA-512 mesh group private key in TP-Link Deco XE75/XE5300/WE10800 (CWE-321). Advisory, analysis & PoC methodology (EN/KO).

    Open source ↗

Frequently asked(5)

What is CVE-2026-15469?
CVE-2026-15469 is a high vulnerability published on August 24, 2026. The use of hard-coded cryptographic key vulnerability has been identified in the mesh functionality of Deco XE75 v3, XE5300 v3.6 and WE10800 v3.6. A shared RSA-512 mesh group private key is present in the affected firmware and is used by the mesh protocol for node authentication. An attacker who…
When was CVE-2026-15469 disclosed?
CVE-2026-15469 was first published in the National Vulnerability Database on August 24, 2026, with the most recent update on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-15469 actively exploited?
CVE-2026-15469 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 81.8% of all scored CVEs.
What is the CVSS score of CVE-2026-15469?
CVE-2026-15469 has a CVSS v3 base score of 7.7 (NVD).
How do I remediate CVE-2026-15469?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-15469, 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

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