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ASUS Releases Urgent Firmware Updates for Router Vulnerabilities

ASUS Releases Urgent Firmware Updates for Router Vulnerabilities

First seen 24 Oct 2026, 15:43 UTC • •

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ThreatCluster AI
ThreatCluster •October 24, 2026 at 17:14 UTC
  • •ASUS released urgent firmware updates for three critical vulnerabilities in its routers.
  • •Vulnerabilities could allow adjacent attackers to gain admin access or disrupt services.
  • •Users are urged to update firmware immediately or implement temporary security measures.

ASUS has issued urgent firmware updates for its routers to address three vulnerabilities, with CVSS scores ranging from 7.7 to 8.7. The vulnerabilities, including CVE-2026-75775, CVE-2026-75779, and CVE-2026-93489, could allow attackers on adjacent networks to gain administrative access or cause denial of service. The first update was released on October 20, 2026, for the 3.0.0.4_386 and 3.0.0.4_388 series, followed by a second update on October 23 for the 3.0.0.6_102 series. ASUS recommends that users update their firmware immediately, as the flaws could be exploited without authentication under specific conditions. Users unable to update are advised to implement temporary security measures, such as changing passwords and disabling remote access. The vulnerabilities affect various ASUS router models, some of which are no longer supported.

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Timeline

2026-10-20
First firmware update released
ASUS issued a firmware update for the 3.0.0.4_386 and 3.0.0.4_388 series routers to address vulnerabilities.
Overclock3D
2026-10-23
Second firmware update released
A second firmware update was released for the 3.0.0.6_102 series routers to fix critical vulnerabilities.
Notebookcheck
2026-10-23
CVE disclosures published
CVE-2026-75775, CVE-2026-75779, and CVE-2026-93489 were published, detailing critical vulnerabilities in ASUS routers.
Notebookcheck
2026-10-23
CVE-2026-93489 published
Vulnerability assigned a CVE identifier and published in the National Vulnerability Database.
MITRE
2026-10-23
CVE-2026-75775 published
Vulnerability assigned a CVE identifier and published in the National Vulnerability Database.
MITRE
2026-10-23
CVE-2026-75779 published
Vulnerability assigned a CVE identifier and published in the National Vulnerability Database.
MITRE

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Common questions

Which ASUS router models are affected?
Affected models include those running firmware versions 3.0.0.4_386, 3.0.0.4_388, and 3.0.0.6_102.
How severe are the vulnerabilities?
The vulnerabilities have CVSS scores ranging from 7.7 to 8.7, indicating high severity.
What should users do immediately?
Users should update their router firmware to the latest versions as soon as possible.