CVE-2023-50440

Name: CVE-2023-50440
Creator: NVD / NIST
Published: 2023-12-13T21:15:09.61+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.23%

Last modified Jun 17, 2026

CVE-2023-50440 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. ZED containers produced by PRIMX ZED! for Windows before Q.2020.3 (ANSSI qualification submission); ZED! for Windows before Q.2021.2 (ANSSI qualification submission); ZONECENTRAL for Windows before Q.2021.2 (ANSSI qualification submission); ZONECENTRAL for Windows before 2023.5; ZEDMAIL for Windows before 2023.5; ZED! for Windows, Mac, Linux before 2023.5; ZEDFREE for Windows, Mac, Linux before 2023.5; or ZEDPRO for Windows, Mac, Linux before 2023.5 can be modified by an unauthenticated attacker to include a UNC reference so that it could trigger network access to an attacker-controlled computer when opened by the victim.. EPSS estimates a 0.23% chance of exploitation in the next 30 days.

Description

ZED containers produced by PRIMX ZED! for Windows before Q.2020.3 (ANSSI qualification submission); ZED! for Windows before Q.2021.2 (ANSSI qualification submission); ZONECENTRAL for Windows before Q.2021.2 (ANSSI qualification submission); ZONECENTRAL for Windows before 2023.5; ZEDMAIL for Windows before 2023.5; ZED! for Windows, Mac, Linux before 2023.5; ZEDFREE for Windows, Mac, Linux before 2023.5; or ZEDPRO for Windows, Mac, Linux before 2023.5 can be modified by an unauthenticated attacker to include a UNC reference so that it could trigger network access to an attacker-controlled computer when opened by the victim.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.23%

13.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-284

Affected Software

Vendor	Product	Versions
Primx	Zed\!	< 2023.5
Primx	Zed\!	< q.2020.3
Primx	Zed\!	>= 2023.0, < 2023.5
Primx	Zed\!	>= q.2021.0, < q.2021.2
Primx	Zedmail	< 2023.5
Primx	Zonecentral	< q.2021.2
Primx	Zonecentral	>= 2023.0, < 2023.5

References

https://www.primx.eu/en/bulletins/security-bulletin-23B30931/Vendor Advisory
https://www.primx.eu/fr/blog/Product
https://www.primx.eu/en/bulletins/security-bulletin-23B30931/Vendor Advisory
https://www.primx.eu/fr/blog/Product

Timeline

Published: Dec 13, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-50440?

How severe is CVE-2023-50440?

CVE-2023-50440 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.23% probability of exploitation in the next 30 days.

How do I fix CVE-2023-50440?

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-2023-50440?

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

Scan your code now

Source: NVD / NIST