CVE-2024-22097Network attack vector

Code execution via repeated Channel Infos sections

Published Feb 20, 2024 · Updated Nov 4, 2025

Double free in libbiosig 2.5.0 BrainVision header parsing allows attackers to execute arbitrary code through a crafted .vhdr file. In sopen_extended, every [Channel Infos] section frees the same tmpfile filename buffer, although that buffer is allocated only once and is never reallocated. Exploitation requires an attacker-supplied BrainVision header to be parsed by libbiosig; repeated sections permit heap manipulation leading to code execution.

CVSS severity9.8
Critical
EPSS probability1.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Double free in libbiosig 2.5.0 BrainVision header parsing allows attackers to execute arbitrary code through a crafted .vhdr file. In sopen_extended, every [Channel Infos] section frees the same tmpfile filename buffer, although that buffer is allocated only once and is never reallocated. Exploitation requires an attacker-supplied BrainVision header to be parsed by libbiosig; repeated sections permit heap manipulation leading to code execution.

The record

CVE
CVE-2024-22097
Published
Feb 20, 2024
Updated
Nov 4, 2025
Vendor
Fedora Project
Product
Fedora Linux
Classifications
CWE-415, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 20, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 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=40

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Fedora Project · Fedora Linuxversion=40
The BioSig Project · libbiosigversion=2.5.0; version=Master Branch (ab0ee111)

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

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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-415Double Free
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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