Security readout for executives and security teams
Plain-English summary
This CVE affects a Jiangmin Antivirus kernel driver. A local user may crash the machine with a blue-screen denial of service, and the record says other impact is possible but unspecified. The public evidence is sparse, so urgency depends on whether Jiangmin Antivirus 16.0.0.100 is present in the environment.
Executive priority
Treat this as a targeted endpoint hygiene issue, not an internet-facing emergency. Prioritize if Jiangmin Antivirus 16.0.0.100 exists on business-critical workstations or servers, because a local crash can still disrupt operations.
Technical view
CVE-2018-6775 describes improper validation of input values to IOCTL 0x990081C8 in KrnlCall.sys, shipped with Jiangmin Antivirus 16.0.0.100. The stated impact is local denial of service through BSOD, with possible unspecified additional impact. No CVSS, CWE, patch details, or detailed affected CPE data are provided.
Likely exposure
Exposure appears limited to systems running Jiangmin Antivirus 16.0.0.100 with the KrnlCall.sys driver installed. The CVE source lists affected vendor and product fields as unavailable, so inventory validation is required before assuming scope.
Exploitation context
The CVE describes local-user exploitation, not remote exploitation. The reference is a public GitHub proof-of-concept repository path, but the bundle does not show CISA KEV listing or active exploitation evidence.
Researcher notes
Available sources identify an IOCTL input-validation flaw but do not provide CVSS, CWE, vendor advisory, fixed version, or authoritative affected product metadata. Avoid expanding impact beyond local BSOD and unspecified possible impact unless additional vendor evidence is obtained.
Mitigation direction
- Identify endpoints running Jiangmin Antivirus 16.0.0.100 or KrnlCall.sys.
- Check Jiangmin vendor guidance for fixed builds or supported replacements.
- Retire or replace affected installations if no fixed driver can be verified.
- Limit local interactive access on affected endpoints until resolved.
- Monitor affected systems for crashes tied to KrnlCall.sys.
Validation and detection
- Inventory Windows endpoints for Jiangmin Antivirus 16.0.0.100.
- Confirm whether KrnlCall.sys is installed and loaded.
- Review endpoint crash data for BSODs involving KrnlCall.sys.
- Check vulnerability management records for CVE-2018-6775 coverage.
- Verify remediation by confirming the affected version is absent.
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-2018-6775 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/KrnlCall_990081C8CVE 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.