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CVE-2023-39209

19
FAUCET Score

CVE-2023-39209 is an improper input validation vulnerability affecting the Zoom Desktop Client for Windows prior to version 5.15.5. This medium-severity flaw, with a CVSS score of 6.5, allows an authenticated user with network access to potentially disclose sensitive information. While no public exploit code or active exploitation has been observed, and community discussion is minimal, organizations should prioritize patching to mitigate this risk.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.15.5CPE matchmatch criteria
cpe:2.3:a:zoom:zoom:*:*:*:*:*:windows:*:*

CVSS Data

CVSS version used by this source: 3.1

5.9MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
1.6
Impact Score
4.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.80%
Probability of exploitation in next 30 days
EPSS Percentile
52.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0080 is in the 64th percentile among its peer group of 21,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

explore.zoom.us / en/trust/security/security-bulletin
Vendor Advisory