PT-2026-30790 · Modem · Modem

Published 2026-04-07 · Updated 2026-04-19 · CVE-2026-20433

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Modem (affected versions not specified)

Description A possible out-of-bounds write exists due to a missing bounds check. This could lead to remote escalation of privilege if a User Equipment (UE) connects to a rogue base station controlled by an attacker, requiring user interaction for exploitation.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2026-20433

Affected Products

Modem

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-20433 · Security Note
• https://corp.mediatek.com/product-security-bulletin/April-2026 · Vendor Advisory
• https://twitter.com/infoflowcloud/status/2045974482695659724 · Twitter Post
• https://twitter.com/CVEnew/status/2045972475146879455 · Twitter Post