PT-2025-48423 · Zyxel · Zyxel Modem

Published 2025-12-01 · Updated 2025-12-06 · CVE-2025-61609

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

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

Description A flaw exists in the modem that may cause a system crash due to insufficient input validation. This could result in a remote denial of service, requiring no elevated privileges.

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

Related Identifiers

ASB-A-448277338

CVE-2025-61609

U-3080271

Affected Products

Zyxel Modem

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2025-61609 · Security Note
• https://osv.dev/vulnerability/CVE-2025-61609 · Vendor Advisory
• https://unisoc.com/en/support/announcement/1995394837938163714 · Vendor Advisory
• https://t.me/CVEtracker/38519 · Telegram Post
• https://twitter.com/cracbot/status/1997259793044779090 · Twitter Post
• https://twitter.com/CVEnew/status/1995398377320935723 · Twitter Post
• https://twitter.com/SecAideInfo/status/1996162089447280663 · Twitter Post