CVE-2026-15476
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedA security vulnerability has been detected in QILING Disk Master 6.0.0.0. The impacted element is an unknown function in the library diskbckp.sys of the component Kernel Driver. Such manipulation leads to improper access controls. The attack can only be performed from a local environment. The exploit has been disclosed publicly and may be used. It is suggested to upgrade the affected component.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceQILING Disk Master 6.0.0.0 contains a kernel driver (diskbckp.sys) with improper access control vulnerabilities. This local privilege escalation or unauthorized access issue allows a local attacker to potentially manipulate disk backup operations due to insufficient access control enforcement in the kernel driver.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Local
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
-
Verify QILING Disk Master is installedCheck for QILING Disk Master in Windows Add/Remove Programs (appwiz.cpl) or look for the installation directory under Program Files or Program Files (x86)Affected if QILING Disk Master version 6.0.0.0 is listed as installed
-
Confirm the exact installed versionRight-click the QILING Disk Master application shortcut or executable, select Properties, and check the File Version field on the Details tab; alternatively, query the registry under HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall for the installed versionAffected if The version displayed is exactly 6.0.0.0
-
Locate the diskbckp.sys kernel driver fileSearch for diskbckp.sys in the QILING Disk Master installation folder (commonly under C:\Program Files\QILING\Disk Master or similar) and in C:\Windows\System32\driversAffected if The file diskbckp.sys exists in either location
-
Verify the driver service existsOpen Services (services.msc) and look for a service related to disk backup or diskbckp, or run 'sc queryex type= driver' and search for diskbckp in the outputAffected if A service associated with diskbckp.sys is present and registered
-
Check driver file permissionsRight-click the diskbckp.sys file, go to Properties > Security tab, and verify which user groups have Read, Write, or Full Control permissionsAffected if Non-admin users or the Everyone group have Write or Full Control access to the driver file
If QILING Disk Master version 6.0.0.0 is installed with the diskbckp.sys driver present and accessible to low-privilege users, the environment is affected by this CVE.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataUpgrade QILING Disk Master to a patched version that addresses the improper access control vulnerability in the diskbckp.sys kernel driver. Verify the upgrade does not introduce compatibility issues with existing backup workflows.
- Consultation3.0 h
- Implementation2.0 h
- Testing6.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,552.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-15476 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-15476 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data