Buffer overflow in Mediatek, Inc. Mediatek Chipset
CVE-2026-20461
In Modem, there is a possible out of bounds write due to a missing bounds check. 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: MOLY01267281 / MOLY01318201; Issue ID: MSV-6486.
Vulnerability class: Buffer Overflow
EPSS: 0.002 (7.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Mediatek, Inc. Mediatek Chipset — versions MT2737, MT6813, MT6835
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-20461?
- CVE-2026-20461 is a medium-severity vulnerability in Mediatek, Inc. Mediatek Chipset, classified under Out-of-bounds Write. CVSS score: 5.3/10. Published 2026-07-01.
- How severe is CVE-2026-20461?
- Medium severity. CVSS v3 base score is 5.3 out of 10.