CVE-2023-39215

Improper authentication in Zoom clients may allow an authenticated user to conduct a denial of service via network access.

Published: 2023-09-12 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-39215 is rated Moderate Risk (48.4/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.92%). Review affected assets and schedule remediation.

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-2023-39215

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 2026-06-15 0.36% 0.92% +0.57%
2 2026-06-07 0.29% 0.36% +0.07%
3 2025-11-30 — 0.29% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-39215

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.1 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
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:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 4.2 [email protected]
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
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:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 3.6 [email protected]

Weakness enumeration for CVE-2023-39215

Affected software / configurations for CVE-2023-39215

Vendor Product Version Raw CPE
zoom meeting_software_development_kit < 5.15.5 cpe:2.3:a:zoom:meeting_software_development_kit:*:*:*:*:*:android:*:*
zoom virtual_desktop_infrastructure < 5.14.12 cpe:2.3:a:zoom:virtual_desktop_infrastructure:*:*:*:*:*:*:*:*
zoom virtual_desktop_infrastructure >= 5.15.0, < 5.15.4 cpe:2.3:a:zoom:virtual_desktop_infrastructure:*:*:*:*:*:*:*:*
zoom zoom < 5.15.5 cpe:2.3:a:zoom:zoom:*:*:*:*:*:android:*:*
zoom zoom < 5.15.5 cpe:2.3:a:zoom:zoom:*:*:*:*:*:iphone_os:*:*
zoom zoom < 5.15.5 cpe:2.3:a:zoom:zoom:*:*:*:*:*:linux:*:*
zoom zoom < 5.15.5 cpe:2.3:a:zoom:zoom:*:*:*:*:*:macos:*:*
zoom zoom < 5.15.5 cpe:2.3:a:zoom:zoom:*:*:*:*:*:windows:*:*

References for CVE-2023-39215

cvelogic Threat Intelligence