CVE-2020-9767
CVE-2020-9767 is a high-severity vulnerability in Zoom Sharing Service with a CVSS 3.x base score of 7.8. 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-427.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v2: 7.2
- EPSS exploit prediction: 1% (52nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-427
- Affected product: Zoom Sharing Service
- Published:
- Last modified:
Description
A vulnerability related to Dynamic-link Library (“DLL”) loading in the Zoom Sharing Service would allow an attacker who had local access to a machine on which the service was running with elevated privileges to elevate their system privileges as well through use of a malicious DLL. Zoom addressed this issue, which only applies to Windows users, in the 5.0.4 client release.
Frequently asked questions
- What is CVE-2020-9767?
- A vulnerability related to Dynamic-link Library (“DLL”) loading in the Zoom Sharing Service would allow an attacker who had local access to a machine on which the service was running with elevated privileges to elevate their system privileges as well through use of a malicious DLL. Zoom addressed this issue, which only applies to Windows users, in the 5.0.4 client release.
- How severe is CVE-2020-9767?
- CVE-2020-9767 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2020-9767 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-9767?
- CVE-2020-9767 affects Zoom Sharing Service. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-9767?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2020-9767 published?
- CVE-2020-9767 was published on 2020-08-14 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:zoom:sharing_service:5.0.4:*:*:*:*:windows:*:*
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