CVE-2025-48005Network attack vector

Code execution via unresized time-channel allocation

Published Aug 25, 2025 · Updated Nov 3, 2025

Heap-based buffer overflow in libbiosig 3.9.0 and Master Branch (35a819fa) allows remote attackers to execute code via a crafted RHS2000 file. In sopen_rhs2000_read, a zero-length hdr->CHANNEL allocation is not resized before time-channel fields are written beyond the heap buffer. Triggering requires libbiosig to parse an attacker-supplied RHS2000 file, after which the writes can execute code in the consuming process.

CVSS severity9.8
Critical
EPSS probability0.74%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap-based buffer overflow in libbiosig 3.9.0 and Master Branch (35a819fa) allows remote attackers to execute code via a crafted RHS2000 file. In sopen_rhs2000_read, a zero-length hdr->CHANNEL allocation is not resized before time-channel fields are written beyond the heap buffer. Triggering requires libbiosig to parse an attacker-supplied RHS2000 file, after which the writes can execute code in the consuming process.

The record

CVE
CVE-2025-48005
Published
Aug 25, 2025
Updated
Nov 3, 2025
Vendor
The BioSig Project
Product
libbiosig
Classifications
CWE-122, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 25, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 3, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.9.0
  2. Affected versionversion=Master Branch (35a819fa)

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The BioSig Project · libbiosigversion=3.9.0; version=Master Branch (35a819fa)

Published CVSS scores

9.8Cisco TalosCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-122Heap-based Buffer Overflow
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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