CVE-2023-50440

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.

Published: 2023-12-13 Last update: 2025-06-03 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-50440 is rated Low Risk (28.9/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.05%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-50440

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2023-12-21 0.04% 0.05% +0.01%
2 2023-12-14 — 0.04% —

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-50440

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 1.8 3.6 [email protected]
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 1.8 3.6 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2023-50440

Affected software / configurations for CVE-2023-50440

Vendor Product Version Raw CPE
primx zed\! < 2023.5 cpe:2.3:a:primx:zed\!:*:*:*:*:enterprise:linux:*:*
primx zed\! < 2023.5 cpe:2.3:a:primx:zed\!:*:*:*:*:enterprise:macos:*:*
primx zed\! < 2023.5 cpe:2.3:a:primx:zed\!:*:*:*:*:free:linux:*:*
primx zed\! < 2023.5 cpe:2.3:a:primx:zed\!:*:*:*:*:free:macos:*:*
primx zed\! < 2023.5 cpe:2.3:a:primx:zed\!:*:*:*:*:free:windows:*:*
primx zed\! < 2023.5 cpe:2.3:a:primx:zed\!:*:*:*:*:pro:linux:*:*
primx zed\! < 2023.5 cpe:2.3:a:primx:zed\!:*:*:*:*:pro:macos:*:*
primx zed\! < 2023.5 cpe:2.3:a:primx:zed\!:*:*:*:*:pro:windows:*:*
primx zed\! < q.2020.3 cpe:2.3:a:primx:zed\!:*:*:*:*:enterprise:windows:*:*
primx zed\! >= 2023.0, < 2023.5 cpe:2.3:a:primx:zed\!:*:*:*:*:enterprise:windows:*:*
primx zed\! >= q.2021.0, < q.2021.2 cpe:2.3:a:primx:zed\!:*:*:*:*:enterprise:windows:*:*
primx zedmail < 2023.5 cpe:2.3:a:primx:zedmail:*:*:*:*:*:windows:*:*
primx zonecentral < q.2021.2 cpe:2.3:a:primx:zonecentral:*:*:*:*:*:windows:*:*
primx zonecentral >= 2023.0, < 2023.5 cpe:2.3:a:primx:zonecentral:*:*:*:*:*:windows:*:*

References for CVE-2023-50440

cvelogic Threat Intelligence