CVE-2021-26615
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 · uneditedARK library allows attackers to execute remote code via the parameter(path value) of Ark_NormalizeAndDupPAthNameW function because of an integer overflow.
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 confidenceAn integer overflow vulnerability exists in the Ark_NormalizeAndDupPAthNameW function within the ARK library. The vulnerability is triggered via a crafted path value parameter, leading to a heap or stack buffer condition that can be leveraged for remote code execution. The high CVSS score indicates the flaw is exploitable over the network without authentication.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 7.13.0.3CVSS 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
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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.
-
Locate Bandisoft Ark Library filesSearch the system for DLL files named 'ark*.dll' or library files from Bandisoft, typically found in program directories or application bin foldersAffected if Ark library files (ark*.dll) are present on the system
-
Identify installed Ark Library versionRight-click the ark library DLL and view Properties, then check the File Version tab; alternatively use 'dir /s ark*.dll' from drive root to find all instances and check their version propertiesAffected if The file version shows exactly 7.13.0.3
-
Determine if applications use Ark_NormalizeAndDupPAthNameWInspect application logs, debug traces, or memory dumps for calls to the function Ark_NormalizeAndDupPAthNameW when processing path parametersAffected if Applications pass user-controlled or untrusted path values to this function
-
Check for Bandisoft productsReview installed programs for Bandisoft applications (such as Bandizip, Honeycam, or other Bandisoft utilities) which may bundle the affected Ark libraryAffected if Bandisoft applications are installed and bundle the unpatched Ark library version 7.13.0.3
The environment is affected if Bandisoft Ark Library version 7.13.0.3 is installed and any application uses the Ark_NormalizeAndDupPAthNameW function to process path parameters.
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 dataApply vendor-supplied patches for the ARK library; if no patch exists, implement strict input validation and bounds checking on all path parameters passed to the affected function to prevent integer overflow conditions.
- Consultation4.0 h
- Implementation8.0 h
- Testing12.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $7,616.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-26615 — 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-2021-26615 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