How severe is CVE-2026-13313?

CVE-2026-13313 has a CVSS 4.0 base score of 8.9, rated high severity.

Is CVE-2026-13313 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-13313?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-13313 published?

CVE-2026-13313 was published on 2026-10-01 and last updated on 2026-10-02.

CVE-2026-13313

CVE-2026-13313 is a high-severity vulnerability with a CVSS 4.0 base score of 8.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-489.

Key facts

Severity: High (CVSS 4.0 base score 8.9)
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-489
Published: 2026-10-01
Last modified: 2026-10-02

Description

An Active Debug Code vulnerability in certain ASUS router models allows a remote authenticated user, via a crafted HTTP request, to bypass security mechanisms and enable the Telnet service, thereby executing arbitrary commands with root privileges and potentially affecting other devices connected to the router. Refer to the ' Security Update for ASUS Router Firmware ' section on the ASUS Security Advisory for more information.

Frequently asked questions

What is CVE-2026-13313?: An Active Debug Code vulnerability in certain ASUS router models allows a remote authenticated user, via a crafted HTTP request, to bypass security mechanisms and enable the Telnet service, thereby executing arbitrary commands with root privileges and potentially affecting other devices connected to the router. Refer to the ' Security Update for ASUS Router Firmware ' section on the ASUS Security Advisory for more information.
How severe is CVE-2026-13313?: CVE-2026-13313 has a CVSS 4.0 base score of 8.9, rated high severity.
Is CVE-2026-13313 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-13313?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-13313 published?: CVE-2026-13313 was published on 2026-10-01 and last updated on 2026-10-02.

References

https://www.asus.com/security-advisory

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