Quick answers
- Is CVE-2026-68590 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-68590 being exploited in the wild.
- How severe is CVE-2026-68590?
- Informational severity, published 2 November 2026.
- Which products and versions are affected?
- MediaTek 5G Modem; MediaTek Dimensity 5G; MediaTek Helio 4G.
- Is there a fix for CVE-2026-68590?
- 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-2026-68590 attacked?
- It is attacked from the adjacent network, in device firmware.
- Am I affected by CVE-2026-68590?
- Check whether you run MediaTek 5G Modem, MediaTek Dimensity 5G or MediaTek Helio 4G. 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
An out of bounds read in the ip_stack component results from improper input validation, allowing remote denial of service when a UE connects to an attacker-controlled rogue base station. The vulnerability requires no additional execution privileges and does not need user interaction. The attack vector is adjacent network access via the cellular connection.
Affected products
- MediaTek 5G Modem
- MediaTek Dimensity 5G
- MediaTek Helio 4G
Timeline
- 2026-11-02: advisory