CVE-2021-34410
CVE-2021-34410 is a high-severity vulnerability in Zoom Zoom Plugin For Microsoft Outlook 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-732.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v2: 7.2
- EPSS exploit prediction: 0% (13th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-732
- Affected product: Zoom Zoom Plugin For Microsoft Outlook
- Published:
- Last modified:
Description
A user-writable application bundle unpacked during the install for all versions of the Zoom Plugin for Microsoft Outlook for Mac before 5.0.25611.0521 allows for privilege escalation to root.
Frequently asked questions
- What is CVE-2021-34410?
- A user-writable application bundle unpacked during the install for all versions of the Zoom Plugin for Microsoft Outlook for Mac before 5.0.25611.0521 allows for privilege escalation to root.
- How severe is CVE-2021-34410?
- CVE-2021-34410 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-2021-34410 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-34410?
- CVE-2021-34410 affects Zoom Zoom Plugin For Microsoft Outlook. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-34410?
- 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-2021-34410 published?
- CVE-2021-34410 was published on 2021-09-27 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:zoom:zoom_plugin_for_microsoft_outlook:*:*:*:*:*:macos:*:*
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