CVE-2023-49646

MEDIUM
MEDIUM Priority: 0.03 BB Relevance: 63/100
Published: 2023-12-13 Modified: 2026-11-02 First seen: 2026-11-02 Status: active

Attack Surface

Network Low Complexity No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
S: Unchanged
C: None
I: None
A: High

Description

Improper authentication in some Zoom clients before version 5.16.5 may allow an authenticated user to conduct a denial of service via network access.

Affected Software (9)

VendorProductVersion
Zoom Video Communications, Inc. Zoom Clients See references
zoom meeting_software_development_kit < 5.16.5
zoom video_software_development_kit < 5.16.5
zoom virtual_desktop_infrastructure < 5.14.14
zoom zoom < 5.16.5
zoom zoom < 5.16.5
zoom zoom < 5.16.5
zoom zoom < 5.16.5
zoom zoom < 5.16.5

Bug Bounty Relevance

63 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

6.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.40%
Raw Score 0.004030
Percentile 34.7%
Date 2026-11-05

EPSS Trend

2026-11-05
0.00403
2026-11-04
0.00403
2026-11-03
0.00403
2026-11-02
0.00403

Intelligence Sources

mitre ref →
nvd ref →