Improper certificate validation in ASUS Router
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-295.
Summary
An Improper Validation of Integrity Check Value and Improper Certificate Validation in certain ASUS router models allows a remote man-in-the-middle(MITM) user to make the router download and execute arbitrary command via a spoofed server. Refer to the ' Security Update for ASUS Router Firmware ' section on the ASUS Security Advisory for more information.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-13385
- 2026-10-03 Alias added: GHSA-f3gg-32xv-8j76
References
More ASUS vulnerabilities
- TI-2021-12008 The administrator application on ASUS GT-AC2900 devices before 3.0.0.4.386.42643 and Lyra… KEVCVSS 3.1CRITICAL 9.8
- TI-2025-36933 "UNSUPPORTED WHEN ASSIGNED" Certain versions of the ASUS Live Update client were… KEVCVSS 4.0CRITICAL 9.3
- TI-2023-20780 OS command injection in ASUS RT-AX55 KEVCVSS 3.1HIGH 8.8
- TI-2018-04367 An issue was discovered in AsusWRT before 3.0.0.4.384_10007. CVSS 3.0CRITICAL 9.8
- TI-2018-04368 An issue was discovered in AsusWRT before 3.0.0.4.384_10007. CVSS 3.0CRITICAL 9.8
- TI-2014-07780 common.c in infosvr in ASUS WRT firmware 3.0.0.4.376_1071, 3.0.0.376.2524-g0013f52, and… CVSS 2.0HIGH 10.0
Sources
- CVE-2026-13385 · CVE Program
- CVE-2026-13385 · NVD
- FIRST EPSS
- GHSA-f3gg-32xv-8j76 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences