CVE-2026-71960

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreHIGH confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-19. a secondary CVSS source baseline 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.1Exploit: None knownExposed: 0

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

Cudy WR3000 2.0 running firmware before 2.5.24 contains a hard-coded JWT HMAC signing secret vulnerability in the Mosquitto MQTT broker's authentication plugin that allows unauthenticated attackers to forge valid JWT tokens by extracting the secret from the firmware image. Attackers can use the extracted secret to craft arbitrary JWT tokens and authenticate to the MQTT broker without legitimate credentials, gaining unauthorized access to the device's mesh networking interface.

CVSS v3
9.1
EG Score
9.1(high)
EG Risk
46(Track)
EG Risk 46/100SSVC: 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
Severity91% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
34%
KEV
Not listed

Published

August 19, 2026

Last Modified

August 19, 2026

Advisory Details (2)

Auto-updated Aug 19, 2026
No patch confirmed yet.
generic

Cudy WR3000 2.0 Hard-coded JWT Secret Authentication Bypass via MQTT | Advisories | VulnCheck

https://www.vulncheck.com/advisories/cudy-wr3000-hard-coded-jwt-secret-authentication-bypass-via-mqtt
generic

Downloads for WR3000 2.0 – Cudy

https://www.cudy.com/en-us/pages/download-center/wr3000-2-0

Vendor Advisories for CVE-2026-71960(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 16× in last 7d / 16× 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. 2026-08-21 06:12 UTCGHSA enrichment
  2. 2026-08-21 02:19 UTCEG score recompute
  3. 2026-08-21 02:19 UTCGHSA enrichment
  4. 2026-08-20 22:56 UTCEPSS rescore
  5. 2026-08-20 22:27 UTCGHSA enrichment
  6. 2026-08-20 18:34 UTCGHSA enrichment
  7. 2026-08-20 14:42 UTCGHSA enrichment
  8. 2026-08-20 10:49 UTCGHSA enrichment
  9. 2026-08-20 06:56 UTCGHSA enrichment
  10. 2026-08-20 03:03 UTCGHSA enrichment
  11. 2026-08-19 23:10 UTCGHSA enrichment
  12. 2026-08-19 19:17 UTCEG score recompute
  13. 2026-08-19 19:17 UTCGHSA enrichment
  14. 2026-08-19 15:24 UTCEG score recompute
  15. 2026-08-19 14:38 UTCEG score recompute
  16. 2026-08-19 14:37 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-71960?
CVE-2026-71960 is a critical vulnerability published on August 19, 2026. Cudy WR3000 2.0 running firmware before 2.5.24 contains a hard-coded JWT HMAC signing secret vulnerability in the Mosquitto MQTT broker's authentication plugin that allows unauthenticated attackers to forge valid JWT tokens by extracting the secret from the firmware image. Attackers can use the…
When was CVE-2026-71960 disclosed?
CVE-2026-71960 was first published in the National Vulnerability Database on August 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-71960 actively exploited?
CVE-2026-71960 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 66.1% of all scored CVEs.
What is the CVSS score of CVE-2026-71960?
CVE-2026-71960 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-71960?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-71960, 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

Explore the affected products and dependency analysis for CVE-2026-71960

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