CVE-2026-12703
Authenticated attacker can bypass TeamViewer macOS 2FA and gain remote access.
Is CVE-2026-12703 being exploited?
Not confirmed. CVE-2026-12703 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.23% probability of exploitation in the next 30 days.
How severe is CVE-2026-12703?
CVE-2026-12703 is rated High with a CVSS score of 8.0. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-12703?
Yes. A fix has been recorded for CVE-2026-12703. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-12703 affect?
CVE-2026-12703 affects TeamViewer Full Client for macOS < 15.80, TeamViewer Host for macOS < 15.80. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-12703?
Update TeamViewer for macOS to 15.80+; disable Unattended Access until patched
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Bypasses 2FA for Connections approval via Unattended Access, allowing authenticated attackers to establish remote sessions and control macOS hosts.
Immediate action required
- affected>= 15.00 and < 15.80
- affected>= 15.00 and < 15.80
- affected>= 15.00 and < 15.80
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.