Security readout for executives and security teams
Plain-English summary
CVE-2018-6781 is a local vulnerability in Jiangmin Antivirus 16.0.0.100. A flawed kernel driver, KSysCall.sys, can let a local user crash Windows with a BSOD. The public record also says unspecified other impact may be possible, but provides no detail.
Executive priority
Treat this as a targeted endpoint stability risk, not a confirmed remote compromise issue. Prioritize remediation if Jiangmin Antivirus 16.0.0.100 exists on production or sensitive systems.
Technical view
The issue is improper validation of input values handled by IOCTL 0x9A008264 in KSysCall.sys. The documented impact is local denial of service. The sources do not provide CVSS, CWE, patch status, or confirmed privilege escalation behavior.
Likely exposure
Exposure appears limited to systems running Jiangmin Antivirus 16.0.0.100 with the KSysCall.sys driver installed. The source bundle does not identify other affected versions or CPEs.
Exploitation context
The CVE references a public proof-of-concept repository. CISA KEV status is false in the bundle, and no provided source confirms active exploitation in the wild.
Researcher notes
Evidence is sparse. The CVE names one IOCTL and a public PoC reference, but does not provide scoring, affected version range, root cause class, patch details, or confirmed impact beyond local DoS and unspecified possible impact.
Mitigation direction
- Inventory hosts for Jiangmin Antivirus 16.0.0.100 and KSysCall.sys.
- Check Jiangmin vendor guidance for fixed builds or supported upgrade paths.
- Remove or replace unsupported affected software where business risk permits.
- Restrict local interactive access to affected endpoints.
- Monitor affected hosts for repeated BSOD or driver crash patterns.
Validation and detection
- Confirm whether Jiangmin Antivirus 16.0.0.100 is installed.
- Verify whether KSysCall.sys is present and loaded.
- Review endpoint crash history for KSysCall.sys-related BSOD events.
- Check vendor release notes or support channels for remediation status.
- Document compensating controls where removal or upgrade is delayed.
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
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CVE-2018-6781 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/KSysCall_9A008264CVE 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.