CVE-2026-18607

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH 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 a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: Elevated riskExposed: 0

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

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
8.8(high)
EG Risk
56(Track*)
EG Risk 56/100SSVC: 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
Severity88% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
37%
KEV
Not listed

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 28× in last 7d / 78× 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. 2026-08-21 08:32 UTCEG score recompute
  2. 2026-08-21 08:32 UTCGHSA enrichment
  3. 2026-08-20 22:55 UTCEPSS rescore
  4. 2026-08-20 20:00 UTCGHSA enrichment
  5. 2026-08-20 07:28 UTCGHSA enrichment
  6. 2026-08-19 18:57 UTCEG score recompute
  7. 2026-08-19 18:57 UTCGHSA enrichment
  8. 2026-08-19 17:03 UTCEPSS rescore
  9. 2026-08-19 04:32 UTCGHSA enrichment
  10. 2026-08-18 15:49 UTCEG score recompute
  11. 2026-08-18 15:49 UTCGHSA enrichment
  12. 2026-08-18 13:48 UTCEPSS rescore
  13. 2026-08-18 02:24 UTCGHSA enrichment
  14. 2026-08-17 13:50 UTCEG score recompute
  15. 2026-08-17 13:50 UTCGHSA enrichment
  16. 2026-08-17 13:47 UTCEPSS rescore
  17. 2026-08-17 01:19 UTCEG score recompute
  18. 2026-08-17 01:19 UTCGHSA enrichment
  19. 2026-08-16 14:56 UTCEPSS rescore
  20. 2026-08-16 12:47 UTCEG score recompute
  21. 2026-08-16 12:47 UTCGHSA enrichment
  22. 2026-08-16 02:14 UTCEPSS rescore
  23. 2026-08-16 00:16 UTCGHSA enrichment
  24. 2026-08-15 11:45 UTCEG score recompute
  25. 2026-08-15 11:45 UTCGHSA enrichment
Show 53 more
  1. 2026-08-15 01:30 UTCEPSS rescore
  2. 2026-08-14 23:13 UTCGHSA enrichment
  3. 2026-08-14 10:42 UTCGHSA enrichment
  4. 2026-08-13 22:11 UTCEG score recompute
  5. 2026-08-13 22:11 UTCGHSA enrichment
  6. 2026-08-13 22:00 UTCEPSS rescore
  7. 2026-08-13 09:39 UTCGHSA enrichment
  8. 2026-08-12 21:08 UTCGHSA enrichment
  9. 2026-08-12 18:25 UTCEG score recompute
  10. 2026-08-12 18:25 UTCGHSA enrichment
  11. 2026-08-12 13:50 UTCEPSS rescore
  12. 2026-08-12 05:54 UTCGHSA enrichment
  13. 2026-08-11 17:23 UTCEG score recompute
  14. 2026-08-11 17:23 UTCGHSA enrichment
  15. 2026-08-11 13:42 UTCEPSS rescore
  16. 2026-08-11 04:46 UTCEG score recompute
  17. 2026-08-11 04:46 UTCGHSA enrichment
  18. 2026-08-11 00:00 UTCEPSS rescore
  19. 2026-08-10 16:15 UTCGHSA enrichment
  20. 2026-08-10 03:43 UTCGHSA enrichment
  21. 2026-08-09 15:12 UTCEG score recompute
  22. 2026-08-09 15:12 UTCGHSA enrichment
  23. 2026-08-09 13:46 UTCEPSS rescore
  24. 2026-08-09 02:41 UTCEG score recompute
  25. 2026-08-09 02:41 UTCGHSA enrichment
  26. 2026-08-08 16:37 UTCEPSS rescore
  27. 2026-08-08 14:10 UTCGHSA enrichment
  28. 2026-08-08 01:39 UTCEG score recompute
  29. 2026-08-08 01:39 UTCGHSA enrichment
  30. 2026-08-07 13:07 UTCGHSA enrichment
  31. 2026-08-07 00:36 UTCEG score recompute
  32. 2026-08-07 00:36 UTCGHSA enrichment
  33. 2026-08-06 13:46 UTCEPSS rescore
  34. 2026-08-06 12:04 UTCGHSA enrichment
  35. 2026-08-05 23:33 UTCEG score recompute
  36. 2026-08-05 23:33 UTCGHSA enrichment
  37. 2026-08-05 19:17 UTCEPSS rescore
  38. 2026-08-05 11:02 UTCGHSA enrichment
  39. 2026-08-04 22:26 UTCEG score recompute
  40. 2026-08-04 22:26 UTCGHSA enrichment
  41. 2026-08-04 15:10 UTCEPSS rescore
  42. 2026-08-04 09:55 UTCEG score recompute
  43. 2026-08-04 09:55 UTCGHSA enrichment
  44. 2026-08-03 21:20 UTCEG score recompute
  45. 2026-08-03 21:20 UTCGHSA enrichment
  46. 2026-08-03 21:20 UTCNVD updateCVSS v4 → 7.4
  47. 2026-08-03 20:43 UTCEG score recompute
  48. 2026-08-03 20:43 UTCGHSA enrichment
  49. 2026-08-03 20:43 UTCMITRE cvelistV5CVSS v4 → 8.7
  50. 2026-08-03 17:38 UTCEG score recompute
  51. 2026-08-03 17:36 UTCNVD updateCVSS v4 → 7.4
  52. 2026-08-03 17:09 UTCEG score recompute
  53. 2026-08-03 17:08 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

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 in the National Vulnerability Database 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% probability of exploitation in the next 30 days, which ranks it in the top 63.3% of all scored CVEs.
What is the CVSS score of CVE-2026-18607?
CVE-2026-18607 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-18607?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-18607, 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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