Quick answers
- Is CVE-2026-20560 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-20560 being exploited in the wild.
- How severe is CVE-2026-20560?
- Informational severity, published 2 November 2026.
- Which products and versions are affected?
- MediaTek Modem.
- Is there a fix for CVE-2026-20560?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-20560 attacked?
- It is attacked over the network, in device firmware.
- Am I affected by CVE-2026-20560?
- Check whether you run MediaTek Modem. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability is a system crash caused by improper input validation in MediaTek modem firmware. An attacker can trigger a remote denial of service by operating a rogue base station (network attack vector) that sends malformed input to a user equipment (UE) connected to it; no authentication or user interaction is required. Patches have been prepared.
Affected products
- MediaTek Modem
Timeline
- 2026-11-02: disclosed