CVE-2026-19396

High

Description

A predictable seed in the pseudo-random number generator (PRNG) in the IFTTT pairing token generation of the ASUS RT-BE57 router allows an unauthenticated nearby user to derive the pairing token and read or modify router settings via observed values from an administrator-initiated IFTTT pairing session.Refer to the ' Security Update for ASUS Router Firmware  ' section on the ASUS Security Advisory for more information.

SeverityHigh
CVSS7.7
Exploit probability—
ProductRouter
PublishedOct 7, 2026
First seenOct 7, 2026
Weakness typeCWE-337CWE-337

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
ASUS Router3.0.0.6_102 series—

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