CVE-2026-100886

CRITICALPre-NVD 10.010.0—
EchelonGraph scoreHIGH confidence

Score 10.0 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-28. A secondary CVSS source baseline 10.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this weekElevated
10.0EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.8%CVSS: 10.0Exploit: 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 was identified in Seetong T8108, T8108P, T8116 and T8232 4.6.1.4-build202604241011. The affected element is an unknown function of the component Debug Service. Such manipulation leads to improper authentication. The attack may be launched remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS v3
10.0
EG Score
10.0CRITICALhigh confidence
EG Risk
76
EG Risk 76/100CISA 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
Severity100% × 45%
Exploitation40% × 40%
Automatability100% × 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
53rd
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 yes (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 27, 2026

Last Modified

September 28, 2026

Advisory Details (1)

Auto-updated Sep 28, 2026
No patch confirmed yet.
generic

GitHub - heapframe/seetong-ts81xxd3x-rce: CVE-2026-100886 | Unauthenticated Remote Code Execution toolkit. · GitHub

https://github.com/heapframe/seetong-ts81xxd3x-rce

Vendor Advisories for CVE-2026-100886(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 62× in last 7d / 62× 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. 2026-10-04 11:38 UTCGHSA enrichment
  2. 2026-10-04 07:41 UTCGHSA enrichment
  3. 2026-10-04 03:44 UTCGHSA enrichment
  4. 2026-10-03 23:47 UTCGHSA enrichment
  5. 2026-10-03 19:47 UTCGHSA enrichment
  6. 2026-10-03 15:51 UTCEG score recompute
  7. 2026-10-03 15:51 UTCGHSA enrichment
  8. 2026-10-03 14:25 UTCEPSS rescore
  9. 2026-10-03 11:53 UTCGHSA enrichment
  10. 2026-10-03 07:56 UTCGHSA enrichment
  11. 2026-10-03 03:56 UTCGHSA enrichment
  12. 2026-10-02 23:57 UTCGHSA enrichment
  13. 2026-10-02 19:58 UTCEG score recompute
  14. 2026-10-02 19:58 UTCGHSA enrichment
  15. 2026-10-02 16:01 UTCGHSA enrichment
  16. 2026-10-02 12:02 UTCGHSA enrichment
  17. 2026-10-02 07:58 UTCGHSA enrichment
  18. 2026-10-02 04:01 UTCGHSA enrichment
  19. 2026-10-02 00:02 UTCGHSA enrichment
  20. 2026-10-01 19:59 UTCEG score recompute
  21. 2026-10-01 19:59 UTCGHSA enrichment
  22. 2026-10-01 19:49 UTCEPSS rescore
  23. 2026-10-01 16:02 UTCGHSA enrichment
  24. 2026-10-01 12:05 UTCGHSA enrichment
  25. 2026-10-01 08:08 UTCGHSA enrichment
Show 37 more
  1. 2026-10-01 04:11 UTCGHSA enrichment
  2. 2026-10-01 00:14 UTCGHSA enrichment
  3. 2026-09-30 20:14 UTCGHSA enrichment
  4. 2026-09-30 16:17 UTCEG score recompute
  5. 2026-09-30 16:17 UTCGHSA enrichment
  6. 2026-09-30 15:02 UTCEPSS rescore
  7. 2026-09-30 11:40 UTCGHSA enrichment
  8. 2026-09-30 07:43 UTCGHSA enrichment
  9. 2026-09-30 03:43 UTCGHSA enrichment
  10. 2026-09-29 23:46 UTCGHSA enrichment
  11. 2026-09-29 19:18 UTCEG score recompute
  12. 2026-09-29 19:18 UTCGHSA enrichment
  13. 2026-09-29 15:20 UTCEPSS rescore
  14. 2026-09-29 15:19 UTCGHSA enrichment
  15. 2026-09-29 11:22 UTCGHSA enrichment
  16. 2026-09-29 07:23 UTCGHSA enrichment
  17. 2026-09-29 03:27 UTCGHSA enrichment
  18. 2026-09-28 23:29 UTCEG score recompute
  19. 2026-09-28 23:29 UTCGHSA enrichment
  20. 2026-09-28 19:32 UTCGHSA enrichment
  21. 2026-09-28 15:29 UTCEG score recompute
  22. 2026-09-28 15:29 UTCGHSA enrichment
  23. 2026-09-28 14:25 UTCEG score recompute
  24. 2026-09-28 14:25 UTCGHSA enrichment
  25. 2026-09-28 14:23 UTCNVD updateCVSS v4 → 9.3
  26. 2026-09-28 13:50 UTCEPSS rescore
  27. 2026-09-28 13:27 UTCEG score recompute
  28. 2026-09-28 13:27 UTCGHSA enrichment
  29. 2026-09-28 13:27 UTCMITRE cvelistV5CVSS v4 → 10
  30. 2026-09-28 11:26 UTCGHSA enrichment
  31. 2026-09-28 07:29 UTCGHSA enrichment
  32. 2026-09-28 03:32 UTCEG score recompute
  33. 2026-09-28 03:32 UTCGHSA enrichment
  34. 2026-09-27 23:35 UTCEG score recompute
  35. 2026-09-27 23:34 UTCNVD updateCVSS v4 → 9.3
  36. 2026-09-27 23:14 UTCEG score recompute
  37. 2026-09-27 23:13 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-100886?
CVE-2026-100886 is a critical vulnerability published on September 27, 2026. A vulnerability was identified in Seetong T8108, T8108P, T8116 and T8232 4.6.1.4-build202604241011. The affected element is an unknown function of the component Debug Service. Such manipulation leads to improper authentication. The attack may be launched remotely. The exploit is publicly available…
When was CVE-2026-100886 disclosed?
CVE-2026-100886 was first published on September 27, 2026, with the most recent update on September 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-100886 actively exploited?
CVE-2026-100886 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.8% probability of exploitation in the next 30 days (53rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-100886?
CVE-2026-100886 has a CVSS base score of 10.0 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-100886?
No fix for CVE-2026-100886 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-2026-100886 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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