CVE-2023-5347

Name: CVE-2023-5347
Creator: NVD / NIST
Published: 2024-01-09T10:15:22.523+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.1/10EPSS 1.34%

Last modified Jun 17, 2026

CVE-2023-5347 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. 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.. EPSS estimates a 1.34% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

9.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

EPSS Probability

1.34%

67.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Korenix	Jetnet 5310g Firmware	2.6
Korenix	Jetnet 4508 Firmware	2.3
Korenix	Jetnet 4508i-W Firmware	1.3
Korenix	Jetnet 4508-W Firmware	2.3
Korenix	Jetnet 4508if-S Firmware	1.3
Korenix	Jetnet 4508if-M Firmware	1.3
Korenix	Jetnet 4508if-Sw Firmware	1.3
Korenix	Jetnet 4508if-Mw Firmware	1.3
Korenix	Jetnet 4508f-M Firmware	2.3
Korenix	Jetnet 4508f-S Firmware	2.3
Korenix	Jetnet 4508f-Mw Firmware	2.3
Korenix	Jetnet 4508f-Sw Firmware	2.3
Korenix	Jetnet 5620g-4c Firmware	1.1
Korenix	Jetnet 5612gp-4f Firmware	1.2
Korenix	Jetnet 5612g-4f Firmware	1.2
Korenix	Jetnet 5728g-24p-Ac-2dc-Us Firmware	2.1
Korenix	Jetnet 5728g-24p-Ac-2dc-Eu Firmware	2.1
Korenix	Jetnet 6528gf-2ac-Eu Firmware	1.0
Korenix	Jetnet 6528gf-2ac-Us Firmware	1.0
Korenix	Jetnet 6528gf-2dc24 Firmware	1.0
Korenix	Jetnet 6528gf-2dc48 Firmware	1.0
Korenix	Jetnet 6528gf-Ac-Eu Firmware	1.0
Korenix	Jetnet 6528gf-Ac-Us Firmware	1.0
Korenix	Jetnet 6628xp-4f-Us Firmware	1.1
Korenix	Jetnet 6628x-4f-Eu Firmware	1.0
Korenix	Jetnet 6728g-24p-Ac-2dc-Us Firmware	1.1
Korenix	Jetnet 6728g-24p-Ac-2dc-Eu Firmware	1.1
Korenix	Jetnet 6828gf-2dc48 Firmware	1.0
Korenix	Jetnet 6828gf-2dc24 Firmware	1.0
Korenix	Jetnet 6828gf-Ac-Dc24-Us Firmware	1.0
Korenix	Jetnet 6828gf-2ac-Us Firmware	1.0
Korenix	Jetnet 6828gf-Ac-Us Firmware	1.0
Korenix	Jetnet 6828gf-2ac-Au Firmware	1.0
Korenix	Jetnet 6828gf-Ac-Dc24-Eu Firmware	1.0
Korenix	Jetnet 6828gf-2ac-Eu Firmware	1.0
Korenix	Jetnet 6910g-M12 Hvdc Firmware	1.0
Korenix	Jetnet 7310g-V2 Firmware	1.0
Korenix	Jetnet 7628xp-4f-Us Firmware	1.0
Korenix	Jetnet 7628xp-4f-Us Firmware	1.1
Korenix	Jetnet 7628xp-4f-Eu Firmware	1.0
Korenix	Jetnet 7628xp-4f-Eu Firmware	1.1
Korenix	Jetnet 7628x-4f-Us Firmware	1.0
Korenix	Jetnet 7628x-4f-Eu Firmware	1.0
Korenix	Jetnet 7714g-M12 Hvdc Firmware	1.0

References

http://packetstormsecurity.com/files/176550/Korenix-JetNet-Series-Unauthenticated-Access.htmlExploit, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2024/Jan/11Exploit, Mailing List, Third Party Advisory
https://cyberdanube.com/en/en-multiple-vulnerabilities-in-korenix-jetnet-series/Exploit, Third Party Advisory
https://www.beijerelectronics.com/en/support/Help___online?docId=69947Vendor Advisory
http://packetstormsecurity.com/files/176550/Korenix-JetNet-Series-Unauthenticated-Access.htmlExploit, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2024/Jan/11Exploit, Mailing List, Third Party Advisory
https://cyberdanube.com/en/en-multiple-vulnerabilities-in-korenix-jetnet-series/Exploit, Third Party Advisory
https://www.beijerelectronics.com/en/support/Help___online?docId=69947Vendor Advisory

Timeline

Published: Jan 9, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-5347?

How severe is CVE-2023-5347?

CVE-2023-5347 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 1.34% probability of exploitation in the next 30 days.

How do I fix CVE-2023-5347?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-5347?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST