CVE-2026-86326

State
Published
Severity
8.6 High
Published
Oct 2, 2026
Updated
Oct 2, 2026
Reserved
Sep 7, 2026

Read the record on cve.org

Description

An improper verification of cryptographic signature vulnerability exists in protocol gateways because the device does not properly verify the cryptographic authenticity of firmware images before installation. An attacker with high privileges and access to the firmware update interface could provide a specially crafted or modified firmware image, causing it to be installed on the device. Successful exploitation could allow the attacker to execute unauthorized code, compromise the integrity and availability of the device, and persist malicious modifications across subsequent firmware updates.

Scores

CVSSScoreVectorSource
4.08.6 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NMoxa

Weaknesses

  • CWE-347 Improper Verification of Cryptographic Signature

Affected Products

ProductVersions
MGate MB3170 SeriesMoxa
  • 1.0Affected
MGate MB3270 SeriesMoxa
  • 1.0Affected

References

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