CVE-2020-17091
Microsoft Teams Remote Code Execution Vulnerability
7.8 High
Microsoft Teams Remote Code Execution Vulnerability
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
1.86%Down 7.7 points since Apr 14, 2021
What each source reports
CVE List Score used
Microsoft Teams Remote Code Execution Vulnerability
Microsoft Teams Remote Code Execution Vulnerability
- Record
CVE-2020-17091- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Weakness
- CWE-94
- Updated
- 2026-11-02
EUVDEUVD-2020-9046
Microsoft Teams Remote Code Execution Vulnerability
- Record
EUVD-2020-9046- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-qg4c-rjgj-mr82
Microsoft Teams Remote Code Execution Vulnerability
Microsoft Teams Remote Code Execution Vulnerability
- Record
GHSA-qg4c-rjgj-mr82- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-94
- Updated
- 2026-11-02
NVD
Microsoft Teams Remote Code Execution Vulnerability
- Record
CVE-2020-17091- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 4.4 Medium
AV:L/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-94
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-17091 is a high vulnerability (CVSS 7.8) in Microsoft Teams, published November 11, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.86%, the 79th percentile. No source names a fixed version.