CVE-2026-7413CRITICAL 9.8EPSS p43.0%

CVE-2026-7413CVE-2026-7413

Description

A hidden, persistent backdoor was found in Yarbo firmware v2.3.9 that provides remote, unauthenticated (or weakly authenticated) access to privileged functionality. The backdoor is undocumented, cannot be disabled via user-facing settings, and survives factory reset and ordinary firmware updates.

Scoring

CVSS 3.19.8 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.58% probability of exploitation · percentile 43.0% · 2026-06-19T12:03:05Z
Published2026-05-07
Last modified2026-05-14

Underlying weaknesses· 1

CWE-912

References

  1. https://github.com/Bin4ry/yarbo-nat-in-my-back-yard
  2. https://takeonme.org/gcves/GCVE-1337-2026-00000000000000000000000000000000000000000000000000111111111111111111111110000000000000000000000000000000000000000000000000000000111
  3. https://takeonme.org/cves/cve-2026-7413/

1

TypeTargetConfidenceTier
WeaknessHidden Functionalitycwe-9120%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.