CVE-2026-101354

CRITICALPre-NVD 9.69.6—
EchelonGraph scoreHIGH confidence

Score 9.6 from GitHub Security Advisory (severity: HIGH) published 2026-09-29. A secondary CVSS source baseline 9.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this weekElevated
9.6EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 9.6Exploit: 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 flaw has been discovered in FAST FAC1203R 20200116_2.0.4. The affected element is the function _tWlanTask of the component MmtAtePrase Parser. Performing a manipulation results in stack-based buffer overflow. The attacker must have access to the local network to execute the attack. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS v3
9.6
EG Score
9.6CRITICALhigh confidence
EG Risk
59
EG Risk 59/100CISA 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
Severity96% × 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
0.4%
EPSS %ILE
30th
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

September 29, 2026

Last Modified

September 29, 2026

Advisory Details (1)

Auto-updated Sep 30, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

vuls-find-VxWorks/vul-find-FAST_FAC1203R-twlantask-MmtAtePrase-stack-overflow(1)/vul-find-FAST_FAC1203R-twlantask-MmtAtePrase-stack-overflow at main · xiaobor123/vuls-find-VxWorks · GitHub

https://github.com/xiaobor123/vuls-find-VxWorks/tree/main/vul-find-FAST_FAC1203R-twlantask-MmtAtePrase-stack-overflow(1)/vul-find-FAST_FAC1203R-twlantask-MmtAtePrase-stack-overflow

Vendor Advisories for CVE-2026-101354(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 51× in last 7d / 51× 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 09:44 UTCGHSA enrichment
  2. 2026-10-04 05:42 UTCGHSA enrichment
  3. 2026-10-04 01:41 UTCGHSA enrichment
  4. 2026-10-03 21:40 UTCGHSA enrichment
  5. 2026-10-03 17:38 UTCEG score recompute
  6. 2026-10-03 17:38 UTCGHSA enrichment
  7. 2026-10-03 14:25 UTCEPSS rescore
  8. 2026-10-03 13:37 UTCGHSA enrichment
  9. 2026-10-03 09:35 UTCGHSA enrichment
  10. 2026-10-03 05:31 UTCGHSA enrichment
  11. 2026-10-03 01:29 UTCGHSA enrichment
  12. 2026-10-02 21:27 UTCGHSA enrichment
  13. 2026-10-02 17:20 UTCEG score recompute
  14. 2026-10-02 17:19 UTCGHSA enrichment
  15. 2026-10-02 13:15 UTCGHSA enrichment
  16. 2026-10-02 09:14 UTCGHSA enrichment
  17. 2026-10-02 05:12 UTCGHSA enrichment
  18. 2026-10-02 01:07 UTCGHSA enrichment
  19. 2026-10-01 21:01 UTCEG score recompute
  20. 2026-10-01 21:01 UTCGHSA enrichment
  21. 2026-10-01 19:49 UTCEPSS rescore
  22. 2026-10-01 17:00 UTCGHSA enrichment
  23. 2026-10-01 12:26 UTCGHSA enrichment
  24. 2026-10-01 08:24 UTCGHSA enrichment
  25. 2026-10-01 04:22 UTCGHSA enrichment
Show 26 more
  1. 2026-10-01 00:21 UTCGHSA enrichment
  2. 2026-09-30 20:17 UTCGHSA enrichment
  3. 2026-09-30 16:16 UTCEG score recompute
  4. 2026-09-30 16:16 UTCGHSA enrichment
  5. 2026-09-30 15:02 UTCEPSS rescore
  6. 2026-09-30 11:51 UTCGHSA enrichment
  7. 2026-09-30 07:49 UTCGHSA enrichment
  8. 2026-09-30 03:47 UTCGHSA enrichment
  9. 2026-09-29 23:45 UTCGHSA enrichment
  10. 2026-09-29 19:05 UTCGHSA enrichment
  11. 2026-09-29 15:33 UTCEG score recompute
  12. 2026-09-29 15:33 UTCGHSA enrichment
  13. 2026-09-29 15:20 UTCEPSS rescore
  14. 2026-09-29 11:32 UTCEG score recompute
  15. 2026-09-29 11:32 UTCGHSA enrichment
  16. 2026-09-29 11:30 UTCNVD updateCVSS v4 → 8.6
  17. 2026-09-29 10:49 UTCEG score recompute
  18. 2026-09-29 10:49 UTCGHSA enrichment
  19. 2026-09-29 10:48 UTCMITRE cvelistV5CVSS v4 → 9.4
  20. 2026-09-29 10:42 UTCGHSA enrichment
  21. 2026-09-29 06:31 UTCEG score recompute
  22. 2026-09-29 06:31 UTCGHSA enrichment
  23. 2026-09-29 02:29 UTCEG score recompute
  24. 2026-09-29 02:28 UTCNVD updateCVSS v4 → 8.6
  25. 2026-09-29 01:21 UTCEG score recompute
  26. 2026-09-29 01:21 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-101354?
CVE-2026-101354 is a critical vulnerability published on September 29, 2026. A security flaw has been discovered in FAST FAC1203R 202001162.0.4. The affected element is the function tWlanTask of the component MmtAtePrase Parser. Performing a manipulation results in stack-based buffer overflow. The attacker must have access to the local network to execute the attack. The…
When was CVE-2026-101354 disclosed?
CVE-2026-101354 was first published on September 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-101354 actively exploited?
CVE-2026-101354 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (30th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-101354?
CVE-2026-101354 has a CVSS base score of 9.6 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-101354?
No fix for CVE-2026-101354 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-2026-101354 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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