High severity · published Jul 29, 2026
CVE-2026-12703
Bypass of 2FA for Connections via Unattended Access in TeamViewer for macOS
8.0
CVSS
0.4%
EPSS
No
On KEV
Description
TeamViewer Full Client and Host for macOS before version 15.80 contain a business logic error that can allow an authenticated attacker to bypass a configured 2FA for Connections approval flow via Unattended Access and establish a remote connection to an affected macOS host.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 34% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ON
ONE · TeamViewer
15.00 before 15.80 · source: vendor
RE
Remote · TeamViewer
15.00 before 15.80 · source: vendor
TE
Tensor · TeamViewer
15.00 before 15.80 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-12703
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-12703
www.teamviewer.com
https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1007/
More from ONE
7.2
CVE-2026-23572
Improper Access Control in TeamViewer clients