How severe is CVE-2023-36539?

CVE-2023-36539 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-36539 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-36539?

CVE-2023-36539 primarily affects Zoom Meetings. In total, 19 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-36539?

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

When was CVE-2023-36539 published?

CVE-2023-36539 was published on 2023-06-30 and last updated on 2026-06-17.

CVE-2023-36539

CVE-2023-36539 is a medium-severity vulnerability in Zoom Meetings with a CVSS 3.x base score of 5.3. 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-326.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-326
Affected product: Zoom Meetings
Published: 2023-06-30
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is CVE-2023-36539?: Exposure of information intended to be encrypted by some Zoom clients may lead to disclosure of sensitive information.
How severe is CVE-2023-36539?: CVE-2023-36539 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-36539 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-36539?: CVE-2023-36539 primarily affects Zoom Meetings. In total, 19 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-36539?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-36539 published?: CVE-2023-36539 was published on 2023-06-30 and last updated on 2026-06-17.

References

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

Affected products (19)

cpe:2.3:a:zoom:meetings:5.15.0:*:*:*:*:android:*:*
cpe:2.3:a:zoom:meetings:5.15.0:*:*:*:*:iphone_os:*:*
cpe:2.3:a:zoom:meetings:5.15.0:*:*:*:*:macos:*:*
cpe:2.3:a:zoom:meetings:5.15.1:*:*:*:*:windows:*:*
cpe:2.3:a:zoom:rooms:5.15.0:*:*:*:*:ipad_os:*:*
cpe:2.3:a:zoom:rooms:5.15.0:*:*:*:*:macos:*:*
cpe:2.3:a:zoom:rooms:5.15.0:*:*:*:*:windows:*:*
cpe:2.3:a:zoom:video_software_development_kit:1.8.0:*:*:*:*:*:*:*
cpe:2.3:a:zoom:zoom:5.15.0:*:*:*:*:android:*:*
cpe:2.3:a:zoom:zoom:5.15.0:*:*:*:*:iphone_os:*:*
cpe:2.3:a:zoom:zoom:5.15.0:*:*:*:*:linux:*:*
cpe:2.3:a:zoom:zoom:5.15.0:*:*:*:*:macos:*:*
cpe:2.3:a:zoom:zoom:5.15.0:*:*:*:*:windows:*:*
cpe:2.3:a:zoom:zoom:5.15.1:*:*:*:*:windows:*:*
cpe:2.3:o:zoom:poly_ccx_700_firmware:5.15.0:*:*:*:*:*:*:*
cpe:2.3:o:zoom:poly_ccx_600_firmware:5.15.0:*:*:*:*:*:*:*
cpe:2.3:o:zoom:yealink_vp59_firmware:5.15.0:*:*:*:*:*:*:*
cpe:2.3:o:zoom:yealink_mp54_firmware:5.15.0:*:*:*:*:*:*:*
cpe:2.3:o:zoom:yealink_mp56_firmware:5.15.0:*:*:*:*:*:*:*

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