CVE-2023-53966
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 · uneditedSOUND4 LinkAndShare Transmitter 1.1.2 contains a format string vulnerability that allows attackers to trigger memory stack overflows through maliciously crafted environment variables. Attackers can manipulate the username environment variable with format string payloads to potentially execute arbitrary code and crash the application.
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 · high confidenceSOUND4 LinkAndShare Transmitter 1.1.2 contains a format string vulnerability where the username environment variable is directly used as a format string in functions like printf() without sanitization. This allows attackers to read/write stack memory via format specifiers (%x, %n, etc.), potentially achieving arbitrary code execution or causing application crashes.
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= 1.1.2CVSS 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
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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.
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Confirm SOUND4 LinkAndShare Transmitter is installedLocate the installation directory or check system for SOUND4 LinkAndShare Transmitter software. Common locations may include Program Files on Windows or standard application directories on Linux.Affected if The software is present on the system
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Identify the installed versionCheck the version of SOUND4 LinkAndShare Transmitter by examining the executable metadata, about dialog, or version information embedded in the application binary.Affected if The version is exactly 1.1.2
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Locate the vulnerable binaryFind the main executable file (typically named LinkAndShare.exe, LinkAndShareTransmitter.exe, or similar) within the installation directory.Affected if The executable exists and was shipped with version 1.1.2
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Check for username environment variable usageExamine the application binary or its runtime behavior to confirm it reads and uses the username environment variable in format string functions. This may require static analysis of the binary or runtime monitoring of environment variable access.Affected if The application uses the USERNAME (Windows) or USER (Linux) environment variable in printf or similar functions without sanitization
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Verify format string vulnerability is reachableDetermine if the code path where the username environment variable is used as a format string is reachable during normal application operation. Check if the application actually invokes the vulnerable code path when processing the username.Affected if The vulnerable code path is executed and the username can contain format specifiers (%x, %n, %s, etc.)
Your environment is affected if SOUND4 LinkAndShare Transmitter version 1.1.2 is installed and the application uses the username environment variable in format string functions without sanitization, allowing format specifiers to be injected.
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 dataSanitize environment variables before use as format strings; validate that username contains no format specifiers. If available, apply vendor patch or upgrade to a fixed version.
- Consultation3.0 h
- Implementation2.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-53966 — 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-2023-53966 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
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- 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
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