Is CVE-2023-50440 in the CISA KEV catalog?

No. CVE-2023-50440 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-50440?

CVE-2023-50440 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2023-50440?

CVE-2023-50440 has an EPSS score of 0.23% (13th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-50440?

Upgrade zed\! to q.2021.2 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2023-50440

MEDIUM

5.5

CVSS v3

NVD

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.

CWE-284Improper Access Control

How to fix

Remediation Available

zed\!NVD

Affected:>= q.2021.0, < q.2021.2Fixed in:q.2021.2CVE-2023-50440derived from NVD

Affected:< 2023.5Fixed in:2023.5CVE-2023-50440derived from NVD

zedmailNVD

Affected:< 2023.5Fixed in:2023.5CVE-2023-50440derived from NVD

zonecentralNVD

Affected:>= 2023.0, < 2023.5Fixed in:2023.5CVE-2023-50440derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.23%probability of exploitation in 30 days

13thpercentile

Low risk: more likely to be exploited than 13% of all known CVEs.

References

Vendor Advisory1

primx.eu

Product1

primx.eu

Related Vulnerabilities

Other CWE-284 (Improper Access Control) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-27350	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2019-1653	High	7.5	100%	KEV	-
CVE-2023-23752	Medium	5.3	100%	KEV	Fix
CVE-2023-29298	High	7.5	100%	KEV	-
CVE-2023-38205	High	7.5	100%	KEV	-
CVE-2024-27348	Critical	9.8	99%	KEV	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-06-03.