Telegram Android RCE Triggered by Answering Voice Calls, Patched in v12.10.4

Thu, 29 Oct 2026 17:24:45 +0000

Engineer — Plan: One-interaction RCE requiring only an attacker Telegram account is a high-severity mobile risk; verify corporate or BYOD devices are running Telegram ≥ 12.10.4 via MDM policy or device-compliance checks. No exploitation signals yet, so this is a patch-window item rather than emergency.
SOC/IR — Learn: No active exploitation, IOCs, or ATT&CK-mappable TTPs have been published; the voice-call RCE vector is worth logging for context when triaging future mobile-related incidents, but there is nothing actionable to detect or hunt today.
Leader — Skip

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