CVE-2026-108889

Yungengxin Cloud Billing IOCTL Process Termination LWBilling64.sys sub_14000443C exposed ioctl with insufficient access control

CVSS score

4.8

EPSS probability

—

Risk score

0.5

Published

16 h ago

Overview Public Exploits (0)Newsroom Vulnerability Timeline

Patch status has not yet been verified

Resmî kaynaklarda yeterli kanıt bulunamadı. Bu sonuç “yama yok” anlamına gelmez.

Impact on My Inventory

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Vulnerability description

CVE AI research

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DayBreach AI Explanation

Verified against sources

Yungengxin Cloud Billing LWBilling64.sys Insufficient Access Control Vulnerability

Sources read

Source agreement

0/2

Evidence confidence

%44

Short explanation

A vulnerability has been identified in Yungengxin Cloud Billing 2024.11.28.11 within the sub_14000443C function of LWBilling64.sys due to insufficient access control. This locally launched issue allows manipulation of the Pid argument, and an exploit has been published.

Why does it matter?

Although this flaw requires local access, a published exploit exists and the vendor has not responded to disclosures. The patch status remains unknown.

What should be done?

Follow vendor advisories
Tighten local access controls

Note on uncertainty

2 alanda kaynak uyuşmazlığı var. DayBreach bu değerleri saklamadı; kaynak karşılaştırması aşağıda gösteriliyor.

Chain of evidence and sources3 verified claims

Yungengxin Cloud Billing 2024.11.28.11 sürümünde LWBilling64.sys bileşeninde bir güvenlik açığı tespit edilmiştir.

S0 · daybreach-canonical S1 · cvelist S2 · nvd

Saldırının yerel olarak başlatılması gerekmekte olup bir istismar yayımlanmıştır.

S0 · daybreach-canonical S1 · cvelist S2 · nvd

Yama durumu resmî kaynaklarda doğrulanamadığı için bilinmemektedir.

S0 · daybreach-canonical

Show the technical text from the sources

A flaw has been found in Yungengxin Cloud Billing 2024.11.28.11. Affected by this vulnerability is the function sub_14000443C in the library LWBilling64.sys of the component IOCTL Process Termination. Executing a manipulation of the argument Pid can lead to exposed ioctl with insufficient access control. The attack needs to be launched locally. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

CWE: CWE-782

Explanation produced with the local gemini-flash-lite-latest model. Numerical metrics and the KEV, patch and exploit statuses are not determined by AI.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-108889 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

ID	VENDOR	PRODUCT	ACTION
1	Yungengxin	Cloud Billing	View

Total affected vendors: 1|Products: 1

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCORE	VERSION	SEVERITY	VECTOR	SOURCE
4.8	CVSS V4_0	MEDIUM	CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P	CVE CNA
4.4	CVSS V3_1	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:P/RL:X/RC:C	CVE CNA
4.4	CVSS V3_0	MEDIUM	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:P/RL:X/RC:C	CVE CNA
4.4	CVSS V31	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L	NVD
3.2	CVSS V2_0	—	AV:L/AC:L/Au:S/C:N/I:P/A:P/E:POC/RL:ND/RC:C	CVE CNA
3.2	CVSS V2	—	AV:L/AC:L/Au:S/C:N/I:P/A:P	NVD
1.9	CVSS V40	LOW	CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X	NVD

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Confirm the affected product and version against the source evidence above.

Restrict access to internet-facing services and apply network segmentation.

Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.

Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-108889 is associated with the following CWEs:

CWE-782: Common Weakness Enumeration Entry CWE-782

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-108889 weaknesses.

CAPEC-66: SQL Injection CAPEC-126: Path Traversal CAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureYerel erişim

PermissionsLow

UserGerekmiyor

Official Sources and Advisories

VDB-416681 | Yungengxin Cloud Billing IOCTL Process Termination LWBilling64.sys sub_14000443C exposed ioctl with insufficient access controlvendor-advisory VDB-416681 | CTI Indicators (IOB, IOC, IOA)vendor-advisory CVE-2026-108889 | CVE Analysis and Reportvendor-advisory Submit #976082 | Yungengxin CLOUD BILLING 2024.11.28.11 Exposed IOCTL with Insufficient Access Controlvendor-advisory

CVSS Vector Radar Chart

4.8 / 10

Vulnerability Scoring Details

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow privileges

User InteractionNone required

Confidentiality (Gizlilik)Low

Integrity (Bütünlük)None

Availability (Erişilebilirlik)Low

Yama durumu bilinmiyor

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Follow the vendor

Yungengxin

Weakness Type (CWE & CAPEC)

CWE-782

Similar Vulnerabilities

4.8

CVE-2026-108835

Yungengxin Yun Jia Security Guard kgameprotect.sys sub_14000885C privileges management

VendorYungengxinProductYun Jia Security Guard

Patch status unknown17 h ago

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