PT-2026-1379 · Modem · Modem

Published 2026-01-06 · Updated 2026-01-29 · CVE-2025-20794

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 flaw exists in Modem that could lead to a remote denial of service. This occurs due to improper input validation, potentially causing a system crash. An attacker could exploit this by having a user equipment (UE) connect to a rogue base station under their control. No additional execution privileges or user interaction are required for exploitation.

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

DoS

Stack Overflow

Weakness Enumeration

CWE-121

Related Identifiers

CVE-2025-20794

Affected Products

Modem

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2025-20794 · Security Note
• https://corp.mediatek.com/product-security-bulletin/January-2026 · Vendor Advisory
• https://reddit.com/r/GalaxyS21/comments/1qqh2tt/s21_firmware_security_update_downloaded_in_usa · Reddit Post
• https://twitter.com/CVEnew/status/2008391028957647248 · Twitter Post
• https://twitter.com/vuldb/status/2008488508915413288 · Twitter Post