CVE-2026-105778

CRITICALPre-NVD 9.99.9—
EchelonGraph scoreHIGH confidence

Score 9.9 from GitHub Security Advisory (severity: HIGH) published 2026-10-06. A secondary CVSS source baseline 9.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Elevated
9.9EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 9.9Exploit: 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 vulnerability has been found in Tenda AC5 02.03.01.111_multi. Affected by this issue is some unknown functionality of the file /goform/setWifi of the component Wifi Handler. Such manipulation of the argument wifiPwd leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

CVSS v3
9.9
EG Score
9.9CRITICALhigh confidence
EG Risk
61
EG Risk 61/100CISA 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
Severity99% × 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
0.5%
EPSS %ILE
39th
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

October 6, 2026

Last Modified

October 6, 2026

Advisory Details (2)

Auto-updated Oct 6, 2026
🔬 Proof of concept available. No fix on record yet.
generic

腾达(Tenda) 官方网站 - 致力于建设值得信赖的好网络

https://www.tenda.com.cn/
generic🟡 PoC Available

Tenda-AC5v3-BOF/blog.md at main · raisecnull/Tenda-AC5v3-BOF · GitHub

https://github.com/raisecnull/Tenda-AC5v3-BOF/blob/main/blog.md

Vendor Advisories for CVE-2026-105778(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 0× in last 7d / 0× 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. 2026-10-07 19:59 UTCGHSA enrichment
  2. 2026-10-07 16:22 UTCGHSA enrichment
  3. 2026-10-07 12:45 UTCGHSA enrichment
  4. 2026-10-07 09:05 UTCGHSA enrichment
  5. 2026-10-07 05:28 UTCGHSA enrichment
  6. 2026-10-07 01:51 UTCGHSA enrichment
  7. 2026-10-06 22:10 UTCGHSA enrichment
  8. 2026-10-06 18:32 UTCEG score recompute
  9. 2026-10-06 18:32 UTCGHSA enrichment
  10. 2026-10-06 18:31 UTCNVD updateCVSS v4 → 8.6
  11. 2026-10-06 17:47 UTCEG score recompute
  12. 2026-10-06 17:47 UTCGHSA enrichment
  13. 2026-10-06 17:46 UTCMITRE cvelistV5CVSS v4 → 9.4
  14. 2026-10-06 15:22 UTCEG score recompute
  15. 2026-10-06 15:22 UTCGHSA enrichment
  16. 2026-10-06 15:17 UTCEPSS rescore
  17. 2026-10-06 14:37 UTCGHSA enrichment
  18. 2026-10-06 11:00 UTCEG score recompute
  19. 2026-10-06 11:00 UTCGHSA enrichment
  20. 2026-10-06 07:24 UTCEG score recompute
  21. 2026-10-06 07:23 UTCNVD updateCVSS v4 → 8.6
  22. 2026-10-06 06:57 UTCEG score recompute
  23. 2026-10-06 06:57 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-105778?
CVE-2026-105778 is a critical vulnerability published on October 6, 2026. A vulnerability has been found in Tenda AC5 02.03.01.111_multi. Affected by this issue is some unknown functionality of the file /goform/setWifi of the component Wifi Handler. Such manipulation of the argument wifiPwd leads to stack-based buffer overflow. It is possible to launch the attack…
When was CVE-2026-105778 disclosed?
CVE-2026-105778 was first published on October 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-105778 actively exploited?
CVE-2026-105778 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (39th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-105778?
CVE-2026-105778 has a CVSS base score of 9.9 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-105778?
No fix for CVE-2026-105778 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-2026-105778 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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