LibbiosigApplication · Libbiosig Project

CVE-2025-48005

CRITICAL · 9.8 CVSS v3.1 Published 2025-08-25
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Public exploit Remotely reachable No privileges Zero-click

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 · unedited
A heap-based buffer overflow vulnerability exists in the RHS2000 parsing functionality of The Biosig Project libbiosig 3.9.0 and Master Branch (35a819fa). A specially crafted RHS2000 file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.

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 confidence

A heap-based buffer overflow vulnerability exists in libbiosig's RHS2000 file parsing code. When processing specially crafted RHS2000 files, the parser fails to properly validate input data sizes before copying into heap-allocated buffers, causing overflow that can enable arbitrary code execution.

MitigationAvoid opening untrusted RHS2000 files until an official patch is released. Consider implementing input validation or sandboxing around the libbiosig library as a temporary mitigation.

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
LibbiosigApplication
Affected:= 3.9.0

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
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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify libbiosig version
    Query the installed libbiosig library version using package manager, library versioning tools, or inspecting library metadata (e.g., dpkg -l, rpm -qi, or dynamic library version symbols)
    Affected if The installed version is exactly 3.9.0
  2. Confirm RHS2000 file support is present
    Check if libbiosig was compiled with RHS2000 format support enabled, or inspect for the presence of RHS2000-related plugins, decoders, or configuration files
    Affected if RHS2000 parsing capability exists in the installed build
  3. Determine if RHS2000 files are processed
    Search application logs, file access records, or system audit logs for evidence of RHS2000 file operations (look for .rhs2000 or rhs2000 file extensions in recent activity)
    Affected if Any RHS2000 files have been opened or parsed by the system
  4. Review heap memory behavior
    Monitor application memory usage patterns during RHS2000 file processing if possible; check for crashes, memory corruption indicators, or abnormal heap allocations associated with libbiosig
    Affected if Unusual memory behavior or crashes occur when processing RHS2000 files

You are affected if libbiosig version 3.9.0 is installed AND your system or applications process RHS2000 files using this library.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Avoid opening untrusted RHS2000 files until an official patch is released. Consider implementing input validation or sandboxing around the libbiosig library as a temporary mitigation.

Fix this in Libbiosig Scoped from the published advisory
  • Consultation4.0 h
  • Implementation12.0 h
  • Testing8.0 h
  • Review / QA4.0 h
28.0 hours of engineering $4,880
Get help mitigating

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $7,808.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2025-48005 — 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 sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-48005 in production — separate from our analysis above.

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.

What this is

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.

What belongs here
  • 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