Exposure of information intended to be encrypted by some Zoom clients may lead to disclosure of sensitive information.

published 2023-06-30 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-40488

cvss: 5.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 45%
public exploits: 0; none known

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-10-28)

Exploit prediction

0.53% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.3	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

Zoom Video Communications, Inc. Zoom clients

Classification

Weakness

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
CWE-325 Missing Cryptographic Step
CWE-326 Inadequate Encryption Strength

References

explore.zoom.us /en/trust/security/security-bulletin/
vendor-advisory

Sources

CVE List CVE-2023-36539
NVD CVE-2023-36539

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary