A security flaw has been discovered in Qihoo 360 Total Security 6.0. This vulnerability affects the function RpcStringBindingComposeW of the component Nucleus Engine Monitoring Logic. Performing a manipulation of the argument NetworkAddr results in protection mechanism failure. The attack requires a local approach. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
CVE-2026-12214 affects Qihoo 360 Total Security 6.0. A local user can reportedly bypass a protection mechanism in the Nucleus Engine component. This matters most on endpoints where untrusted users or malware already have local access. Public exploit material is referenced, but the sources do not show confirmed active exploitation.
Executive priority
Treat as a high-priority endpoint exposure if Qihoo 360 Total Security 6.0 is deployed. The issue is local, not remote, but public exploit availability and high impact make it important for environments with shared workstations, weak endpoint controls, or elevated business sensitivity.
Technical view
The flaw is reported in Nucleus Engine Monitoring Logic, involving RpcStringBindingComposeW and manipulation of the NetworkAddr argument. It is classified as CWE-693, protection mechanism failure. CVSS 4.0 is 8.5 with local attack vector, low complexity, low privileges, no user interaction, and high vulnerable-system confidentiality, integrity, and availability impact.
Likely exposure
Organizations running Qihoo 360 Total Security 6.0 on Windows endpoints are the stated exposure. Risk is higher on shared systems, unmanaged endpoints, or hosts where attackers may gain a low-privileged local foothold. The provided affected-product data does not confirm other versions.
Exploitation context
The advisory states the exploit has been released publicly and may be used for attacks. CISA KEV status is false in the provided bundle, and no cited source confirms active exploitation. The attack requires local access and low privileges, limiting remote mass exploitation but increasing post-compromise risk.
Researcher notes
Evidence is centered on VulDB, CVE records, and a linked GitHub issue. Vendor response is reported as absent. No official patch or mitigation is named in the supplied sources. The submission reference mentions a business product context, while the affected data names Qihoo 360 Total Security 6.0.
Mitigation direction
Inventory endpoints for Qihoo 360 Total Security 6.0.
Check Qihoo 360 vendor guidance for updates or mitigations.
Restrict local user access on affected systems.
Prioritize remediation on shared, kiosk, and high-value endpoints.
Monitor vendor and VulDB pages for patch status changes.
Validation and detection
Confirm installed Qihoo 360 Total Security versions across endpoints.
Verify whether version 6.0 is present in production.
Review endpoint logs for suspicious local privilege activity.
Track whether public exploit indicators apply to your environment.
Document compensating controls where patch guidance is unavailable.
Based on public source material and reviewed before publication.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
cwe · low confidence lookup
CWE-693: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve
time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
4CVSS vectors
6Timeline events
0ADP providers
6Source links
CVSS vector scores
4 official scores
We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present,
the table keeps the source vectors side by side instead of collapsing them into the highest score.
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
CWE-693 · source CWE mapping
Protection Mechanism Failure
Protection Mechanism Failure represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.