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.
Published: 2026-10-07
Score: 7.7 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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References
Link Providers
https://www.asus.com/security-advisory cve-icon cve-icon
History

Wed, 07 Oct 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Wed, 07 Oct 2026 04:00:00 +0000

Type Values Removed Values Added
Title Predictable PRNG Seed Enables Unauthenticated Control of ASUS Router Settings

Wed, 07 Oct 2026 02:15:00 +0000

Type Values Removed Values Added
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.
First Time appeared Asus
Asus router
Weaknesses CWE-337
CPEs cpe:2.3:a:asus:router:3.0.0.6_102_series:*:*:*:*:*:*:*
Vendors & Products Asus
Asus router
References
Metrics cvssV4_0

{'score': 7.7, 'vector': 'CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Subscriptions

Asus Router
cve-icon MITRE

Status: PUBLISHED

Assigner: ASUS

Published:

Updated: 2026-10-07T18:38:56.073Z

Reserved: 2026-08-10T07:25:54.054Z

Link: CVE-2026-19396

cve-icon Vulnrichment

Updated: 2026-10-07T18:38:42.931Z

cve-icon NVD

Status : Deferred

Published: 2026-10-07T02:16:58.013

Modified: 2026-10-07T19:17:36.380

Link: CVE-2026-19396

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-07T05:30:12Z

Weaknesses
  • CWE-337

    Predictable Seed in Pseudo-Random Number Generator (PRNG)