Incorrect Access Control via activation token reuse on the password-reset endpoint allowing unauthorized password resets and full account takeover. Affected Product: Deutsche Telekom AG Telekom Account Management Portal, versions before 2025-10-27, fixed 2025-10-31.

Incorrect Access Control via missing 2FA rate-limiting allowing unlimited brute-force retries and full MFA bypass with no user interaction required. Affected Product: Deutsche Telekom AG Telekom Account Management Portal, versions before 2025-10-24, fixed 2025-11-03.