Vulnerability · Published Jul 1, 2026 · Assigned by MediaTek

CVE-2026-20460

Medium 5.3

In plain English

A medium-severity authentication bypass in MediaTek chipset from MediaTek, Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium

Exploit odds (30 days)0.3%top 81.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

In Modem, there is a possible information disclosure due to improper input validation. This could lead to remote information disclosure, 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: MOLY01811421; Issue ID: MSV-6788.

Affected products (as reported)

Vendor	Product	Versions
MediaTek, Inc.	MediaTek chipset	MT2735MT2737MT6779MT6781MT6783MT6785MT6789MT6813

Weakness: CWE-288 · Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

References

https://corp.mediatek.com/product-security-bulletin/July-2026