Security readout for executives and security teams
Plain-English summary
CVE-2018-6777 is a local denial-of-service issue in Jiangmin Antivirus 16.0.0.100. A local user could trigger a crash in the KVFG.sys driver, causing a Windows blue screen. Public data does not confirm remote exploitation, active exploitation, or a vendor patch.
Executive priority
Treat as a targeted endpoint stability risk, not a confirmed internet-scale emergency. Prioritize shared workstations, kiosk-like systems, and environments where local users are not fully trusted.
Technical view
The issue is in KVFG.sys, a Jiangmin Antivirus kernel driver. The CVE states the driver fails to validate input values for IOCTL 0x220400, allowing local users to cause BSOD or possibly unspecified other impact. No CVSS, CWE, or fixed version is provided.
Likely exposure
Exposure is likely limited to Windows systems running Jiangmin Antivirus 16.0.0.100 with KVFG.sys present. The source bundle does not identify other affected versions or products.
Exploitation context
The CVE is not listed as KEV, so active exploitation is not established here. A public GitHub reference exists, indicating proof-of-concept-level public discussion, but local access is required per the CVE description.
Researcher notes
The source evidence is sparse: no CVSS vector, CWE, fixed version, or vendor remediation is included. Analysis should stay scoped to Jiangmin Antivirus 16.0.0.100 and KVFG.sys unless additional vendor or CNA data confirms broader impact.
Mitigation direction
- Identify endpoints running Jiangmin Antivirus 16.0.0.100.
- Check Jiangmin vendor guidance for updates, workarounds, or replacement builds.
- Prioritize systems where untrusted local users can log in.
- Restrict local interactive access on affected endpoints where feasible.
- Monitor endpoint crashes involving KVFG.sys.
Validation and detection
- Inventory installed Jiangmin Antivirus versions across Windows endpoints.
- Confirm whether KVFG.sys is present on candidate systems.
- Review crash dumps or event logs for KVFG.sys BSOD references.
- Verify vendor advisory or package metadata before declaring remediation complete.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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.
CVE-2018-6777 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/ZhiyuanWang-Chengdu-Qihoo360/Jiangmin_Antivirus_POC/tree/master/KVFG_220400CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.