CVE-2026-12703 json
Bypass of 2FA for Connections via Unattended Access in TeamViewer for macOS
published 2026-07-29 3 mo ago modified 2026-07-30 3 mo ago also EUVD-2026-50360
- cvss
- 8.0
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 34%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- TeamViewer Remote 15.80
- TeamViewer Tensor 15.80
- TeamViewer ONE 15.80
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 3 mo ago
Exploit prediction
0.40% chance of exploitation in the next 30 days, higher than 34% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.0 | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H |
Affected products
- TeamViewer Remote
- TeamViewer Tensor
- TeamViewer ONE
Classification
- Weakness
-
- CWE-288 Authentication Bypass Using an Alternate Path or Channel
References
Sources
- CVE List CVE-2026-12703
- NVD CVE-2026-12703
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.