CVE-2026-116926
Microsoft Teams Spoofing Vulnerability
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Teams allows an unauthorized attacker to perform spoofing over a network.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Microsoft Teams Spoofing Vulnerability
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Teams allows an unauthorized attacker to perform spoofing over a network.
- Record
CVE-2026-116926- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C - Weakness
- CWE-79
- Updated
- 2026-11-10
EUVDEUVD-2026-122519
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Teams allows an unauthorized attacker to perform spoofing over a network.
- Record
EUVD-2026-122519- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C - Updated
- 2026-11-10
GitHub AdvisoriesGHSA-54cm-x266-gr64
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft...
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Teams allows an unauthorized attacker to perform spoofing over a network.
- Record
GHSA-54cm-x266-gr64- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-79
- Updated
- 2026-11-10
NVD
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Teams allows an unauthorized attacker to perform spoofing over a network.
- Record
CVE-2026-116926- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-79
- Updated
- 2026-11-10
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| published | EUVD | |
| published | EUVD, NVD | |
| aliases, references | GitHub Advisories | |
| cwes, references, severity, title | CVE List | |
| first indexed | EUVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-116926 is a high vulnerability (CVSS 7.5) in Microsoft Teams For Android, published November 10, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.14%, the 67th percentile. No source names a fixed version.