How severe is CVE-2023-39199?

CVE-2023-39199 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-39199 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-39199?

CVE-2023-39199 primarily affects Zoom Meetings. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-39199?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-39199 published?

CVE-2023-39199 was published on 2023-11-14 and last updated on 2026-06-17.

CVE-2023-39199

CVE-2023-39199 is a medium-severity vulnerability in Zoom Meetings with a CVSS 3.x base score of 4.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-325.

Key facts

Severity: Medium (CVSS 3.x base score 4.9)
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-325
Affected product: Zoom Meetings
Published: 2023-11-14
Last modified: 2026-06-17

Description

Cryptographic issues with In-Meeting Chat for some Zoom clients may allow a privileged user to conduct an information disclosure via network access.

Frequently asked questions

What is CVE-2023-39199?: Cryptographic issues with In-Meeting Chat for some Zoom clients may allow a privileged user to conduct an information disclosure via network access.
How severe is CVE-2023-39199?: CVE-2023-39199 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-39199 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-39199?: CVE-2023-39199 primarily affects Zoom Meetings. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-39199?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-39199 published?: CVE-2023-39199 was published on 2023-11-14 and last updated on 2026-06-17.

References

https://explore.zoom.us/en/trust/security/security-bulletin/

Affected products (15)

cpe:2.3:a:zoom:meetings:*:*:*:*:*:android:*:*
cpe:2.3:a:zoom:meetings:*:*:*:*:*:iphone_os:*:*
cpe:2.3:a:zoom:meetings:*:*:*:*:*:linux:*:*
cpe:2.3:a:zoom:meetings:*:*:*:*:*:macos:*:*
cpe:2.3:a:zoom:meetings:*:*:*:*:*:windows:*:*
cpe:2.3:a:zoom:rooms:*:*:*:*:*:android:*:*
cpe:2.3:a:zoom:rooms:*:*:*:*:*:ipad_os:*:*
cpe:2.3:a:zoom:rooms:*:*:*:*:*:macos:*:*
cpe:2.3:a:zoom:rooms:*:*:*:*:*:windows:*:*
cpe:2.3:a:zoom:virtual_desktop_infrastructure:*:*:*:*:*:*:*:*
cpe:2.3:a:zoom:zoom:*:*:*:*:*:android:*:*
cpe:2.3:a:zoom:zoom:*:*:*:*:*:iphone_os:*:*
cpe:2.3:a:zoom:zoom:*:*:*:*:*:linux:*:*
cpe:2.3:a:zoom:zoom:*:*:*:*:*:macos:*:*
cpe:2.3:a:zoom:zoom:*:*:*:*:*:windows:*:*

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