Time-of-check time-of-use race condition in ASUS Member Center
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- Passive
- Attack complexity
- High
- Attack requirements
- Present
- Impact type
- Code execution
- 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-494.
Summary
A Download of Code Without Integrity Check vulnerability in the update modules in ASUS Member Center(华硕大厅) allows a local user to achieve privilege escalation to Administrator via exploitation of a Time-of-check Time-of-use (TOC-TOU) during the update process, where an unexpected payload is substituted for a legitimate one immediately after download, and subsequently executed with administrative privileges upon user consent. Refer to the 'Security Update for ASUS Member Center' 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
- No
- 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-2026-3428
- 2026-10-03 Alias added: GHSA-49h6-4qj3-4f42
References
Advisory 1
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-2026-3428 · CVE Program
- CVE-2026-3428 · NVD
- FIRST EPSS
- GHSA-49h6-4qj3-4f42 · 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