CVE-2026-18607

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-03. A secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
8.8EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.8%CVSS: 8.8Exploit: Elevated riskExposed services: Not assessed

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

A security vulnerability has been detected in Wavlink WN572, WN570H, WN573, WN529, WN530, WN531, WN535, etc. WN529, WN530, WN531, WN535, WN536, WN551, WN557 and NU516 up to 20260609. Affected by this issue is the function strcpy of the file upload.cgi of the component lighttpd. The manipulation of the argument HTTP_COOKIE leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used.

CVSS v3
8.8
EG Score
8.8HIGHmedium confidence
EG Risk
56
EG Risk 56/100CISA 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
Severity88% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low, Track* at medium and Attend at high mission impact.
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 or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
0.8%
EPSS %ILE
54th
KEV
Not listed

CISA SSVCTrack at low, Track* at medium and Attend 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 or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation public PoC (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

August 3, 2026

Last Modified

August 12, 2026

Advisory Details (1)

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

GitHub - 0xcc12138/WAVLINK-vul: only vuldb can open the rar · GitHub

https://github.com/0xcc12138/WAVLINK-vul

Vendor Advisories for CVE-2026-18607(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 19× in last 7d / 83× 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 208 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-18607?
CVE-2026-18607 is a high vulnerability published on August 3, 2026. A security vulnerability has been detected in Wavlink WN572, WN570H, WN573, WN529, WN530, WN531, WN535, etc. WN529, WN530, WN531, WN535, WN536, WN551, WN557 and NU516 up to 20260609. Affected by this issue is the function strcpy of the file upload.cgi of the component lighttpd. The manipulation of…
When was CVE-2026-18607 disclosed?
CVE-2026-18607 was first published on August 3, 2026, with the most recent update on August 12, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-18607 actively exploited?
CVE-2026-18607 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.8% probability of exploitation in the next 30 days (54th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-18607?
CVE-2026-18607 has a CVSS base score of 8.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-18607?
No fix for CVE-2026-18607 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-2026-18607 are linked in the Vendor Advisories panel on this page.

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