OS command injection in Qihoo 360 D603-2 timezone push handler
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-77.
Summary
Qihoo 360 D603-2, D600-2 and D606-6 firmware from 6.3.0 through 6.3.2 is affected. The on_push_message function in the Timezone Push Handler does not properly neutralize the tz argument, which allows OS command injection (CWE-78). A remote unauthenticated attacker can run operating system commands on the device. A public exploit has been disclosed and is linked in the references.
Written with Claude Haiku 5.5 from the sources below · 2026-11-04
Description from the CNA
A vulnerability was determined in Qihoo 360 D603-2, D600-2 and D606-6 up to 6.3.2. This vulnerability affects the function on_push_message of the file /fs2/bin/iscm of the component Timezone Push Handler. Executing a manipulation of the argument tz can lead to os command injection. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. Upgrading to version 6.4.0 is able to resolve this issue. Upgrading the affected component is advised. Firmware 6.4.0 gates the path with a new check_timezone_parameter validation (verified by VulDB vulnerability analysis team via disassembly).
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Qihoo 360 | D603-2 | 6.3.0; 6.3.1; 6.3.2 | 6.4.0 | Patch available | CNA |
| Qihoo 360 | D600-2 | 6.3.0; 6.3.1; 6.3.2 | 6.4.0 | Patch available | CNA |
| Qihoo 360 | D606-6 | 6.3.0; 6.3.1; 6.3.2 | 6.4.0 | Patch available | CNA |
Remediation
Upgrade Qihoo 360 D603-2, D600-2 and D606-6 to firmware version 6.4.0.
Written with Claude Haiku 5.5 from the sources below · 2026-11-04
- Fix · CNA D603-2 (Qihoo 360) Fixed in 6.4.0
- Fix · CNA D600-2 (Qihoo 360) Fixed in 6.4.0
- Fix · CNA D606-6 (Qihoo 360) Fixed in 6.4.0
Timeline
- 2026-11-04 Threatist record created from CVE-2026-121608
- 2026-11-04 Alias added: GHSA-pw8g-mg6x-g4wh
- 2026-11-05 Priority changed: MEDIUM → LOW
References
More Qihoo 360 vulnerabilities
- TI-2026-84912 OS command injection in Qihoo 360 D603-2 and other models CVSS 4.0CRITICAL 10.0
- TI-2026-84914 Hard-coded credentials in Qihoo 360 Whole Home Router M5 boot script CVSS 4.0CRITICAL 10.0
- TI-2026-84911 Improper signature verification in Qihoo 360 firmware iscm CVSS 4.0CRITICAL 10.0
Sources
- CVE-2026-121608 · CVE Program
- CVE-2026-121608 · NVD
- FIRST EPSS
- GHSA-pw8g-mg6x-g4wh · 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