MediaTekCVE-2026-20459
MediaTek chipset: improper input validation
Medium5.3CVE-2026-20459 · Published Jul 1, 2026
In Modem, there is a possible system crash due to improper input validation. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01816800; Issue ID: MSV-6842.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| MediaTek chipset Product | <= MT2716 | No fix yet |
| <= MT2735 | No fix yet | |
| <= MT2737 | No fix yet | |
| <= MT6739 | No fix yet |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- Severity from
- CISA (its enrichment of the CVE record)
- Weakness
- CWE-288
More MediaTek advisories
All MediaTek| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Jul 1 | MediaTek chipset: information disclosure | Medium5.3 | No fix yet |
| Jul 1 | MediaTek chipset: out-of-bounds write | Medium5.3 | No fix yet |
| Jul 1 | MediaTek chipset: memory corruption | Medium6.7 | No fix yet |
| Jul 1 | MediaTek chipset: privilege escalation | Medium6.7 | No fix yet |
| Jul 1 | MediaTek chipset: improper input validation | Medium5.3 | No fix yet |
| Jul 1 | MediaTek chipset: memory corruption | High7.5 | No fix yet |