CVE-2026-121606
validatingZero is analyzing and reversing it now.GHSA-4g7h-mgvw-cqjw ↗EUVD-2026-116670 ↗
no check availablenot proven exploitable
cve.orgpublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).+0mkevAttacks confirmed in the real world.
Qihoo 360 D621-2 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
CWE-347 Improper Verification of Cryptographic Signature
ETK-2026-3426Zero's internal tracking ID, independent of the CVE number., permanent identifier
–running
startingcurrent stage
description
Qihoo 360 D621-2, D603-2, D600-2, D619, D606-6, and D706 devices through 6.4.9 are affected by flawed firmware signature validation. A remote attacker may be able to cause invalid firmware signatures to be accepted; the advisory does not establish the required authentication or network preconditions.
Still under analysis: more detail becomes available as the pipeline runs.
mitigation
Restrict network access to device administration and firmware-update functions to trusted administrators, and isolate affected devices from untrusted networks. Monitor for and apply a vendor-provided firmware update; no fixed release is recorded.
check
building now
exploit
not yet
automationDeterministic: a check that runs on its own, the same request on every target. Contextual: an agentic technique that needs to be applied per target, for bugs that depend on contextual flows.
–
auth requiredWhether an attacker needs an account first, based on the CVSS vector's Privileges Required.
no
EPSSEstimate of the chance this CVE is exploited in the next 30 days. Refreshed daily.
–
agent run time
16m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-11-04 01:00Z
Δ to public pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).
+0m
Δ to kevAttacks confirmed in the real world.
–
outcome
Run in progress: no artifact yet.
source signals
Public signals that triggered or updated the pipeline. These are inputs for the deltas above.
- 2026-11-04 01:00Zcve_org: trigger signal, started the run
- 2026-11-04 01:24Zexploit reference (gist.github.com)
this entry in the feed
GET /api/v1/feed/CVE-2026-121606
{ "etk_id": "ETK-2026-3426", "cve_id": "CVE-2026-121606", "display_id": "CVE-2026-121606", "ghsa_id": "GHSA-4g7h-mgvw-cqjw", "euvd_id": "EUVD-2026-116670", "status": "in_pipeline", "anchor_state": "anchored", "title": "Improper firmware signature verification in Qihoo 360 D-series routers", "summary": "Qihoo 360 D621-2, D603-2, D600-2, D619, D606-6, and D706 devices through 6.4.9 are affected by flawed firmware signature validation. A remote attacker may be able to cause invalid firmware signatures to be accepted; the advisory does not establish the required authentication or network preconditions.", "mitigation": "Restrict network access to device administration and firmware-update functions to trusted administrators, and isolate affected devices from untrusted networks. Monitor for and apply a vendor-provided firmware update; no fixed release is recorded.", "vendor": "Qihoo 360", "product": "D621-2", "affected": [ { "affected_notes": [], "affected_ranges": [ "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" ], "ecosystem": null, "fixed_versions": [], "package_name": "D621-2", "purl": null }, { "affected_notes": [], "affected_ranges": [ "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" ], "ecosystem": null, "fixed_versions": [], "package_name": "D603-2", "purl": null }, { "affected_notes": [], "affected_ranges": [ "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" ], "ecosystem": null, "fixed_versions": [], "package_name": "D600-2", "purl": null }, { "affected_notes": [], "affected_ranges": [ "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" ], "ecosystem": null, "fixed_versions": [], "package_name": "D619", "purl": null }, { "affected_notes": [], "affected_ranges": [ "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" ], "ecosystem": null, "fixed_versions": [], "package_name": "D606-6", "purl": null }, { "affected_notes": [], "affected_ranges": [ "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" ], "ecosystem": null, "fixed_versions": [], "package_name": "D706", "purl": null } ], "cwes": [ 347 ], "cvss_score": 10, "cvss_src": "cna_vendor", "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P", "epss_score": null, "epss_percentile": null, "epss_asof": null, "automation": "contextual", "check": false, "check_confidence_basis": null, "exploit": false, "pipeline_minutes": 15.76553305, "t0_at": "2026-11-04T01:00:26.282000+00:00", "signals": { "public_poc": { "at": "2026-11-04T01:00:26.282000+00:00", "days": 0, "is_lower_bound": false, "measured_at": "2026-11-04T01:00:26.282000+00:00", "url": "https://gist.github.com/gajgdm6-cpu/cf98af20ddb77f27a7c112214a6280f7" }, "trigger_signal": { "at": "2026-11-04T01:00:26.282000+00:00", "days": 0, "is_lower_bound": false, "measured_at": "2026-11-04T01:00:26.282000+00:00", "url": "https://www.cve.org/CVERecord?id=CVE-2026-121606" } } }
published 2026-11-04 01:14Z
last change 2026-11-04 03:47Z
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