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Improper privilege management in Yungengxin Yun Jia Security Guard

Priority MEDIUM 55CWE-266Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Privilege escalation
Confidentiality · integrity · availability
None · Low · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-266.

Summary

Yungengxin Yun Jia Security Guard up to 2.7.1.9 contains improper privilege management (CWE-269) in the function sub_14000885C of the library kgameprotect.sys. Manipulating the argument Pid can lead to improper privilege management. A local attacker with low privileges can exploit this flaw to affect integrity and availability.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

A flaw has been found in Yungengxin Yun Jia Security Guard up to 2.7.1.9. Impacted is the function sub_14000885C in the library kgameprotect.sys. Executing a manipulation of the argument Pid can lead to improper privilege management. The attack requires local access. The vendor was contacted early about this disclosure but did not respond in any way.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0011 1st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
YungengxinYun Jia Security Guard2.7.1.0; 2.7.1.1; 2.7.1.2; 2.7.1.3; 2.7.1.4; 2.7.1.5; 2.7.1.6; 2.7.1.7; 2.7.1.8; 2.7.1.9—No fix listedCNA
  • Yun Jia Security Guard VendorYungengxin Affected 2.7.1.0; 2.7.1.1; 2.7.1.2; 2.7.1.3; 2.7.1.4; 2.7.1.5; 2.7.1.6; 2.7.1.7; 2.7.1.8; 2.7.1.9 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:yungengxin:yun_jia_security_guard:*:*:*:*:*:*:*:*——Yungengxin
  • cpe:2.3:a:yungengxin:yun_jia_security_guard:*:*:*:*:*:*:*:* Versions — — ·Yungengxin

Remediation

The sources list no fixed version for Yungengxin Yun Jia Security Guard.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Timeline

  1. 2026-10-12 Threatist record created from CVE-2026-108835
  2. 2026-10-12 Alias added: GHSA-xv4v-468p-jcg2
  3. 2026-10-16 CISA SSVC decision points changed
  4. 2026-10-16 Priority changed: LOW → MEDIUM

References

—

  • TI-2026-70944 Exposed IOCTL in Yungengxin Cloud Billing allows process termination CVSS 4.0MEDIUM 4.8

Sources