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CVE-2026-121606Qihoo 360 D621-2/D603-2/D600-2/D619/D606-6/D706 Firmware Signature Verification iscm verify_sign signature verification

A vulnerability has been found in Qihoo 360 D621-2, D603-2, D600-2, D619, D606-6 and D706 up to 6.4.9. Affected by this issue is the function verify_sign of the file fs2/bin/iscm of the component Firmware Signature Verification. Such manipulation of the argument sign leads to improper verification of cryptographic signature. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

10.0 CRITICALEPSS 0.23%Not in KEVNVD: Deferred

OverviewAffected ProductsReferences
NVD CVE.org

Overview

Severity

ScoreSeverityVersionVector String
10.0CRITICAL4.0VulDB (CNA)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
9.3CRITICAL4.0VulDB (CNA)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
10.0CRITICAL3.1VulDB (CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
10.0CRITICAL3.1VulDB (CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RC:C
10.0CRITICAL3.0VulDB (CNA)CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RC:C
10.0HIGH2.0VulDB (CNA)AV:N/AC:L/Au:N/C:C/I:C/A:C
10.0HIGH2.0VulDB (CNA)AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:C

Details

CVE ID
CVE-2026-121606
Status
Deferred
Assigner (CNA)
VulDB
Published
Nov 4, 2026
Last modified
2026-11-04 01:17 UTC
Weaknesses
  • CWE-347 · Improper Verification of Cryptographic Signature
  • CWE-345 · Insufficient Verification of Data Authenticity

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-08 07:29 UTC.