Vulnerabilities

CVSS

7.5 High

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Risk score

60.0

Published

2025-10-11

Status

Published

In modem, there is a possible system crash due to improper input validation. This could lead to remote escalation of privilege with no additional execution privileges needed.

Weaknesses

CWE-20 Improper Input Validation

Coverage 1

vulnerability

Unisoc VoLTE Video Call Exploit Chain Can Give Attackers Full Android Kernel Access

Security researchers at SSD Secure Disclosure have discovered a two-stage exploit chain that allows attackers to gain full Android kernel access on devices using Unisoc modem firmware. The vulnerability stems from a shar…

The Hacker News · Aug 17, 2026 High

CVE-2025-31718CVE-2022-20210CHandroidmodemkernel

All articles mentioning it

Advisories and references

• unisoc.com/en/support/announcement/1976557615080263681