CVE-2026-90608

CRITICALPre-NVD 9.99.9—
EchelonGraph scoreHIGH confidence

Score 9.9 from GitHub Security Advisory (severity: HIGH) published 2026-09-14. a secondary CVSS source baseline 9.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this weekElevated
9.9EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.9Exploit: Elevated riskExposed: 0

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

A flaw has been found in Totolink A3002MU Hh-B20211125.1046. The affected element is the function formPortFw of the file /boafrm/formPortFw of the component boa. This manipulation of the argument service_type causes buffer overflow. It is possible to initiate the attack remotely. The exploit has been published and may be used.

CVSS v3
9.9
EG Score
9.9(high)
EG Risk
61(Track)
EG Risk 61/100SSVC: 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
Severity99% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
55%
KEV
Not listed

Published

September 14, 2026

Last Modified

September 16, 2026

Advisory Details (2)

Auto-updated Sep 16, 2026
No patch confirmed yet.
generic

TOTOLINK | Wi-Fi 7, Mesh, 5G & Enterprise Networking

https://www.totolink.net/
generic

cuicuishark-sheep-fishIOT/ToTolink/A3002MU/bof-formPortFw.md at main · SunnyYANGyaya/cuicuishark-sheep-fishIOT · GitHub

https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A3002MU/bof-formPortFw.md

Vendor Advisories for CVE-2026-90608(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 61× in last 7d / 61× 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. 2026-09-20 12:47 UTCGHSA enrichment
  2. 2026-09-20 08:59 UTCGHSA enrichment
  3. 2026-09-20 05:11 UTCGHSA enrichment
  4. 2026-09-20 01:23 UTCGHSA enrichment
  5. 2026-09-19 21:35 UTCGHSA enrichment
  6. 2026-09-19 17:47 UTCEG score recompute
  7. 2026-09-19 17:47 UTCGHSA enrichment
  8. 2026-09-19 13:59 UTCGHSA enrichment
  9. 2026-09-19 10:05 UTCGHSA enrichment
  10. 2026-09-19 06:18 UTCGHSA enrichment
  11. 2026-09-19 02:29 UTCGHSA enrichment
  12. 2026-09-18 22:40 UTCEG score recompute
  13. 2026-09-18 22:40 UTCGHSA enrichment
  14. 2026-09-18 19:28 UTCEPSS rescore
  15. 2026-09-18 18:53 UTCGHSA enrichment
  16. 2026-09-18 15:05 UTCGHSA enrichment
  17. 2026-09-18 11:15 UTCGHSA enrichment
  18. 2026-09-18 07:27 UTCGHSA enrichment
  19. 2026-09-18 03:40 UTCGHSA enrichment
  20. 2026-09-17 23:52 UTCGHSA enrichment
  21. 2026-09-17 19:34 UTCEG score recompute
  22. 2026-09-17 19:34 UTCGHSA enrichment
  23. 2026-09-17 19:32 UTCEPSS rescore
  24. 2026-09-17 14:18 UTCGHSA enrichment
  25. 2026-09-17 10:30 UTCGHSA enrichment
Show 36 more
  1. 2026-09-17 06:42 UTCGHSA enrichment
  2. 2026-09-17 02:54 UTCGHSA enrichment
  3. 2026-09-16 23:05 UTCGHSA enrichment
  4. 2026-09-16 19:17 UTCGHSA enrichment
  5. 2026-09-16 15:29 UTCEG score recompute
  6. 2026-09-16 15:29 UTCGHSA enrichment
  7. 2026-09-16 15:19 UTCNVD updateCVSS v4 → 8.6
  8. 2026-09-16 14:52 UTCEG score recompute
  9. 2026-09-16 14:52 UTCGHSA enrichment
  10. 2026-09-16 14:45 UTCMITRE cvelistV5CVSS v4 → 9.4
  11. 2026-09-16 14:09 UTCEPSS rescore
  12. 2026-09-16 11:11 UTCGHSA enrichment
  13. 2026-09-16 07:24 UTCEG score recompute
  14. 2026-09-16 07:24 UTCGHSA enrichment
  15. 2026-09-16 05:15 UTCEPSS rescore
  16. 2026-09-16 03:36 UTCGHSA enrichment
  17. 2026-09-15 23:48 UTCGHSA enrichment
  18. 2026-09-15 19:59 UTCGHSA enrichment
  19. 2026-09-15 16:11 UTCGHSA enrichment
  20. 2026-09-15 12:23 UTCGHSA enrichment
  21. 2026-09-15 08:33 UTCGHSA enrichment
  22. 2026-09-15 04:45 UTCEG score recompute
  23. 2026-09-15 04:45 UTCGHSA enrichment
  24. 2026-09-15 03:12 UTCEPSS rescore
  25. 2026-09-15 00:53 UTCGHSA enrichment
  26. 2026-09-14 21:05 UTCGHSA enrichment
  27. 2026-09-14 20:19 UTCGHSA enrichment
  28. 2026-09-14 16:31 UTCGHSA enrichment
  29. 2026-09-14 12:43 UTCGHSA enrichment
  30. 2026-09-14 08:55 UTCGHSA enrichment
  31. 2026-09-14 05:08 UTCEG score recompute
  32. 2026-09-14 05:08 UTCGHSA enrichment
  33. 2026-09-14 01:20 UTCEG score recompute
  34. 2026-09-14 01:19 UTCNVD updateCVSS v4 → 8.6
  35. 2026-09-14 00:40 UTCEG score recompute
  36. 2026-09-14 00:39 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-90608?
CVE-2026-90608 is a critical vulnerability published on September 14, 2026. A flaw has been found in Totolink A3002MU Hh-B20211125.1046. The affected element is the function formPortFw of the file /boafrm/formPortFw of the component boa. This manipulation of the argument service_type causes buffer overflow. It is possible to initiate the attack remotely. The exploit has…
When was CVE-2026-90608 disclosed?
CVE-2026-90608 was first published in the National Vulnerability Database on September 14, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-90608 actively exploited?
CVE-2026-90608 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 45.1% of all scored CVEs.
What is the CVSS score of CVE-2026-90608?
CVE-2026-90608 has a CVSS v3 base score of 9.9 (NVD).
How do I remediate CVE-2026-90608?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-90608, 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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