OS command injection in certain ASUS routers allows root command execution
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- 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-78.
Summary
Certain ASUS routers are affected from the 3.0.0.6.102 series, the 3.0.0.4.386 series and the 3.0.0.4.388 series. Improper neutralization of special elements in an OS command (CWE-78) lets a remote user run arbitrary commands with root privileges via crafted parameters. The flaw can be reached while the device is in its factory-default state.
Written with Claude Haiku 5.5 from the sources below · 2026-11-02
Description from the CNA
Improper Neutralization of Special Elements used in an OS Command in certain ASUS routers allows remote user to execute arbitrary commands with root privileges via crafted parameters sent to the router while the device is in its factory-default state.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
- 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
The sources list no fixed version for ASUS Router.
Written with Claude Haiku 5.5 from the sources below · 2026-11-02
Timeline
- 2026-10-23 Threatist record created from CVE-2026-75775
- 2026-10-23 Alias added: GHSA-76gg-39xw-6h7c
- 2026-10-23 CISA SSVC decision points changed
- 2026-10-23 Priority changed: MEDIUM → LOW
- 2026-10-24 CISA SSVC decision points changed
- 2026-11-02 Affected versions changed · CNA
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-2026-75775 · CVE Program
- CVE-2026-75775 · NVD
- FIRST EPSS
- GHSA-76gg-39xw-6h7c · GitHub Advisory Database · CC BY 4.0
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