CVE-2026-18167

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% (15th percentile of EPSS-scored CVEs). 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 week
7.7EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 7.7Exploit: None knownExposed services: Not assessed

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

A stack-based buffer overflow vulnerability exists in the EasyMesh module of TP-Link Archer AX55 v4. When Mesh mode is enabled, a LAN attacker may submit crafted input that causes the easymesh daemon to crash and may potentially achieve remote code execution on the device.

Successful exploitation may cause the EasyMesh daemon to crash and may potentially allow remote code execution when Mesh mode is enabled. This may result in high impact to the confidentiality, integrity, and availability of the affected device.

CVSS v3
7.7
EG Score
7.7HIGHmedium confidence
EG Risk
35
EG Risk 35/100CISA SSVC

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%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.3%
EPSS %ILE
15th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 3, 2026

Last Modified

September 8, 2026

Advisory Details (2)

Auto-updated Sep 3, 2026
No patch confirmed yet.
generic

Security Advisory: Multiple Vulnerabilities in TP-Link Archer AX55 (CVE-2026-18167 & CVE-2026-18330)

https://www.tp-link.com/us/support/faq/5279/

Vendor Advisories for CVE-2026-18167(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 26× in last 7d / 110× 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 119 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-18167?
CVE-2026-18167 is a high vulnerability published on September 3, 2026. A stack-based buffer overflow vulnerability exists in the EasyMesh module of TP-Link Archer AX55 v4. When Mesh mode is enabled, a LAN attacker may submit crafted input that causes the easymesh daemon to crash and may potentially achieve remote code execution on the device. Successful exploitation…
When was CVE-2026-18167 disclosed?
CVE-2026-18167 was first published on September 3, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-18167 actively exploited?
CVE-2026-18167 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (15th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-18167?
CVE-2026-18167 has a CVSS base score of 7.7 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-18167?
No fix for CVE-2026-18167 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. The vendor advisories EchelonGraph has for CVE-2026-18167 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-18167

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