Security readout for executives and security teams
Plain-English summary
This CVE describes a flaw in Jiangmin Antivirus 16.0.0.100 where a local user could crash Windows through the KVFG.sys driver. The documented business impact is endpoint denial of service, such as a blue screen. The record also mentions possible unspecified other impact, but provides no detail to support a broader claim.
Executive priority
Treat this as a targeted endpoint stability risk, not a confirmed internet-scale emergency. Prioritize affected systems that are shared, high-availability, or difficult to recover after crashes.
Technical view
The issue is in the Jiangmin Antivirus KVFG.sys kernel driver. The CVE states that input values for IOCTL 0x220840 are not validated, allowing local users to trigger a denial of service. No CVSS score, CWE, patch version, or detailed affected CPE data is provided in the supplied sources.
Likely exposure
Exposure appears limited to systems running Jiangmin Antivirus 16.0.0.100 with the KVFG.sys driver present. The source bundle does not identify other affected versions or products.
Exploitation context
The CVE has a public proof-of-concept reference, but it is not listed in CISA KEV. The supplied sources do not show active exploitation, remote exploitation, or confirmed privilege escalation.
Researcher notes
The public record is sparse. Known evidence supports local denial of service through insufficient driver input validation. Do not infer remote reachability, active exploitation, or code execution from the supplied sources.
Mitigation direction
- Inventory endpoints for Jiangmin Antivirus 16.0.0.100 and KVFG.sys.
- Check Jiangmin vendor guidance for patched or supported versions.
- Upgrade, replace, or remove unsupported affected installations where feasible.
- Limit local interactive access on systems running the affected driver.
- Monitor endpoint crash reports for recurring KVFG.sys failures.
Validation and detection
- Confirm whether KVFG.sys is installed and loaded on endpoints.
- Record Jiangmin Antivirus version details from managed assets.
- Review Windows crash logs for KVFG.sys-related BSOD events.
- Check vendor release notes before assuming a fixed version.
- Verify compensating controls restrict untrusted local users.
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-2018-6786 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
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_220840CVE 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.