PT-2026-5624 · Modem · Modem

Published 2026-02-02 · Updated 2026-04-23 · CVE-2026-20401

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

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

Description A system crash due to an uncaught exception may lead to remote denial of service. This can occur if a User Equipment (UE) connects to a rogue base station controlled by an attacker, requiring no additional execution privileges. User interaction is not required for exploitation.

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

DoS

Improper Check for Exceptional Conditions

Assertion Failure

Weakness Enumeration

CWE-754

CWE-617

Related Identifiers

CVE-2026-20401

Affected Products

Modem

References · 7

• https://corp.mediatek.com/product-security-bulletin/February-2026 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-20401 · Security Note
• https://twitter.com/cypherbyteio/status/2047257016155177310 · Twitter Post
• https://twitter.com/cracbot/status/2020090216053363090 · Twitter Post
• https://t.me/CVEtracker/43462 · Telegram Post
• https://twitter.com/CVEnew/status/2018249245430874474 · Twitter Post
• https://t.me/cveNotify/150851 · Telegram Post