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A video call could give attackers kernel access on affected Unisoc phones

The exploit chain targets modem handling before the user meaningfully interacts with the call.

Hand-drawn SecBriefs editorial illustration: A video call could give attackers kernel access on affected Unisoc phonesSOURCE · Dark Reading
© 2026 SecBriefs · Original illustration

THE BRIEF

Researchers chained two flaws in Unisoc modem components to reach Android kernel-level access through VoLTE video-call processing. The risk depends on the device, firmware and carrier implementation.

WHY IT MATTERS

Kernel access sits below ordinary applications and can expose communications, credentials and device controls. Mobile patching is complicated because fixes must often pass through chipset vendors, phone makers and carriers.

WHO SHOULD CARE

Owners of affected Android devices, mobile fleets, telecom providers and high-risk users.

WHAT TO DO NOW

  • Install the latest device and carrier security updates.
  • Check whether the manufacturer lists the relevant modem fixes.
  • Replace unsupported devices that no longer receive security patches.

VERIFICATION NOTE

Source basis: Dark Reading reporting. The flaw does not affect every Android phone or every Unisoc device equally.

Read original at Dark Reading

SecBriefs adds context and practical guidance. Reporting remains credited and linked to the original publisher.