CVE-2026-93489
HIGH 8.7Improper Authentication in ASUS router modules allows an unauthenticated nearby user to send an HTTP request and forge an access ticket, subsequently enabling the user to perform administrator operations. Refer to the ' Security Update for ASUS Router Firmware ' section on the ASUS Security Advisory for more information.
Severe if exploited (CVSS 8.7), but no known exploitation and low modeled probability. Patch on a normal cadence.
Exploitation likelihood
0.2%chance of exploitation in 30 days · 14th percentile
Impact if exploited
8.7CVSS 4.0 · HIGH
- ConfidentialityHigh
- IntegrityHigh
- AvailabilityHigh
What an attacker needs
- ⚠Access: Must sit on the same / adjacent network
- ✓Privileges: No account or privileges required
- ✓User interaction: No user interaction needed
- ✓Complexity: No special conditions — reliably repeatable
- ✓Requirements: No special attack requirements
✓ lowers the bar for an attacker · ⚠ raises it
Proof of concept
No public PoC is currently catalogued.
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Data snapshot:
Weakness (CWE)
- CWE-287: : Improper Authentication
CVSS vector
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
References and research data (JSON)
All CVSS metrics
- HIGH 8.7 v4.0 · CNA Primary
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N - HIGH 8.7 v4.0 · NVD Secondary
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
References
Advisories
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-108609 EUVD · EUVD-2026-108609
Technical & other
- https://www.asus.com/security-advisoryCVE record · ASUS · Updated 2026-10-23T07:07:13.744Z
NVD · CVE-2026-93489 · Updated 2026-10-24T04:18:27.290