CRITICALCVSS v3.1 10.0Vulnerability

CVE-2026-121606

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.

Properties

Severity
CRITICAL
Nvd fetched at
2026-11-04T01:29:06.847378+00:00
Cvss score
10
Cvss severity
CRITICAL
Retrieved at
2026-11-04T01:30:00+00:00
Score
10
Last source
NVD
Cvss version
3.1
Cve id
CVE-2026-121606
Cvss vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
First seen by Signal
2026-11-04T01:30:00+00:00
Name
CVE-2026-121606
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Published at
2026-11-04T01:17:23.880
Last modified
2026-11-04T01:17:24.050

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CVE-2026-121606 (CVSS v3.1 10) — Ninja Signal Threat Intelligence | Ninja Signal