CVE-2023-5347
Unauthenticated Firmware Upgrade
CRITICAL 9.1EPSS 1.3%
An Improper Verification of Cryptographic Signature vulnerability in the update process of Korenix JetNet Series allows replacing the whole operating system including Trusted Executables. This issue affects JetNet devices older than firmware version 2024/01.
- Affected
- Korenix · JetNet Series
- CVSS v3.1 NVD
- 9.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H - CVSS v3.1 CYBERDANUBE
- 9.8 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS
- 1.34% chance of exploitation in the next 30 days, 71st percentile
- Published
- 2024-01-09
- Updated
- 2025-10-08
Proof-of-concept exploits (3)
- http://packetstormsecurity.com/files/176550/Korenix-JetNet-Series-Unauthenticated-Access…
- http://seclists.org/fulldisclosure/2024/Jan/11
- https://cyberdanube.com/en/en-multiple-vulnerabilities-in-korenix-jetnet-series/
Security advisories
- https://www.beijerelectronics.com/en/support/Help___online?docId=69947
- https://cyberdanube.com/en/en-multiple-vulnerabilities-in-korenix-jetnet-series