CVE-2026-75166

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-04. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
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: None knownExposed: 0

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

Insecure Permission vulnerability in MBS-Solutions X-Serie Gateway firmware V6_00_05 allows the low-privileged service user to execute /usr/bin/tcpdump as root without a password. By leveraging the tcpdump -z option, an authenticated attacker can achieve arbitrary command execution.

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
41%
KEV
Not listed

Published

September 4, 2026

Last Modified

September 9, 2026

Advisory Details (3)

Auto-updated Sep 9, 2026
No patch confirmed yet.
generic

vulnerability-research/CVE-2026-75166 at main · SilviaMun/vulnerability-research · GitHub

https://github.com/SilviaMun/vulnerability-research/tree/main/CVE-2026-75166
generic

X-Series - MBS GmbH

https://en.mbs-solutions.de/xserie
generic

MBS GmbH - MBS GmbH

https://en.mbs-solutions.de/mbs

Vendor Advisories for CVE-2026-75166(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 25× 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. 2026-09-20 20:16 UTCEPSS rescore
  2. 2026-09-20 19:05 UTCGHSA enrichment
  3. 2026-09-20 05:57 UTCGHSA enrichment
  4. 2026-09-19 16:51 UTCEG score recompute
  5. 2026-09-19 16:51 UTCGHSA enrichment
  6. 2026-09-19 03:44 UTCEG score recompute
  7. 2026-09-19 03:44 UTCGHSA enrichment
  8. 2026-09-18 19:28 UTCEPSS rescore
  9. 2026-09-18 14:37 UTCGHSA enrichment
  10. 2026-09-18 01:30 UTCEG score recompute
  11. 2026-09-18 01:30 UTCGHSA enrichment
  12. 2026-09-17 12:23 UTCGHSA enrichment
  13. 2026-09-16 23:16 UTCEG score recompute
  14. 2026-09-16 23:16 UTCGHSA enrichment
  15. 2026-09-16 14:08 UTCEPSS rescore
  16. 2026-09-16 10:10 UTCEG score recompute
  17. 2026-09-16 10:10 UTCGHSA enrichment
  18. 2026-09-16 05:15 UTCEPSS rescore
  19. 2026-09-15 21:03 UTCGHSA enrichment
  20. 2026-09-15 07:56 UTCEG score recompute
  21. 2026-09-15 07:56 UTCGHSA enrichment
  22. 2026-09-15 03:12 UTCEPSS rescore
  23. 2026-09-14 18:49 UTCGHSA enrichment
  24. 2026-09-14 05:43 UTCEG score recompute
  25. 2026-09-14 05:43 UTCGHSA enrichment
Show 26 more
  1. 2026-09-13 16:36 UTCGHSA enrichment
  2. 2026-09-13 03:30 UTCEG score recompute
  3. 2026-09-13 03:30 UTCGHSA enrichment
  4. 2026-09-12 15:02 UTCEPSS rescore
  5. 2026-09-12 14:23 UTCGHSA enrichment
  6. 2026-09-12 01:17 UTCEG score recompute
  7. 2026-09-12 01:17 UTCGHSA enrichment
  8. 2026-09-11 14:53 UTCEPSS rescore
  9. 2026-09-11 12:10 UTCEG score recompute
  10. 2026-09-11 12:10 UTCGHSA enrichment
  11. 2026-09-10 23:02 UTCGHSA enrichment
  12. 2026-09-10 09:56 UTCEG score recompute
  13. 2026-09-10 09:56 UTCGHSA enrichment
  14. 2026-09-10 09:35 UTCEPSS rescore
  15. 2026-09-09 20:49 UTCGHSA enrichment
  16. 2026-09-09 19:55 UTCEG score recompute▲ 8.80
  17. 2026-09-09 19:55 UTCGHSA enrichment
  18. 2026-09-09 19:54 UTCMITRE cvelistV5CVSS v3 → 8.8 · severity → HIGH
  19. 2026-09-09 16:09 UTCGHSA enrichment
  20. 2026-09-08 22:01 UTCEPSS rescore
  21. 2026-09-07 18:56 UTCEG score recompute
  22. 2026-09-07 18:56 UTCGHSA enrichment
  23. 2026-09-06 13:48 UTCEPSS rescore
  24. 2026-09-04 16:22 UTCNVD update
  25. 2026-09-04 15:54 UTCEG score recompute
  26. 2026-09-04 15:54 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-75166?
CVE-2026-75166 is a high vulnerability published on September 4, 2026. Insecure Permission vulnerability in MBS-Solutions X-Serie Gateway firmware V60005 allows the low-privileged service user to execute /usr/bin/tcpdump as root without a password. By leveraging the tcpdump -z option, an authenticated attacker can achieve arbitrary command execution.
When was CVE-2026-75166 disclosed?
CVE-2026-75166 was first published in the National Vulnerability Database on September 4, 2026, with the most recent update on September 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-75166 actively exploited?
CVE-2026-75166 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 58.5% of all scored CVEs.
What is the CVSS score of CVE-2026-75166?
CVE-2026-75166 has a CVSS v3.1 base score of 8.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-75166?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-75166, 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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