Answer in brief
CVE-2026-121607 records a Critical severity (CVSS 10.0) vulnerability in Qihoo 360 D603-2/D600-2/D606-6/D706 iscm testspeed_command os command injection. The current sources do not mark it as known exploited. The current feed maps Qihoo 360/D600-2 (generic), Qihoo 360/D603-2 (generic), Qihoo 360/D606-6 (generic), Qihoo 360/D706 (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 10.0. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Qihoo 360/D600-2 (generic), Qihoo 360/D603-2 (generic), Qihoo 360/D606-6 (generic), Qihoo 360/D706 (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Qihoo 360/D600-2generic | 6.4.0 || 6.4.1 || 6.4.2 || 6.4.3 || 6.4.4 || 6.4.5 || 6.4.6 || 6.4.7 || 6.4.8 || 6.4.9 | Not reported |
| Qihoo 360/D603-2generic | 6.4.0 || 6.4.1 || 6.4.2 || 6.4.3 || 6.4.4 || 6.4.5 || 6.4.6 || 6.4.7 || 6.4.8 || 6.4.9 | Not reported |
| Qihoo 360/D606-6generic | 6.4.0 || 6.4.1 || 6.4.2 || 6.4.3 || 6.4.4 || 6.4.5 || 6.4.6 || 6.4.7 || 6.4.8 || 6.4.9 | Not reported |
| Qihoo 360/D706generic | 6.4.0 || 6.4.1 || 6.4.2 || 6.4.3 || 6.4.4 || 6.4.5 || 6.4.6 || 6.4.7 || 6.4.8 || 6.4.9 | Not reported |
Published upstream
Nov 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 4, 2026
A vulnerability was found in Qihoo 360 D603-2, D600-2, D606-6 and D706 up to 6.4.9. This affects the function testspeed_command of the file /fs2/bin/iscm. Performing a manipulation of the argument host results in os command injection. The attack may be initiated remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
Quoted source text, attributed separately from HOL analysis.