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No exploitation reportedFix available

CVE-2025-53853

No exploitation reported by the sources we read.

  • Published2025-08-25
  • WeaknessCWE-122

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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

Timeline

dates in UTC
  1. 2025-08-2514:15CVE publishedNVD

Versions per branch

NVD
Libbiosig project libbiosig
BranchAffectedFixed in
3.9= 3.9.0no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As talos, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • The Biosig Project libbiosig
    Affected
    • = 3.9.0no fix stated
    • = Master Branch (35a819fa)no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2025-08-25

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • biosigUbuntu:Pro:26.04:LTSall versions · no fixed version listed
  • biosigUbuntu:Pro:24.04:LTSall versions · no fixed version listed
  • biosigUbuntu:Pro:22.04:LTSall versions · no fixed version listed
  • biosigUbuntu:26.10all versions · no fixed version listed
  • biosigUbuntu:25.10all versions · no fixed version listed
  • biosigDebian:14all versions · fixed in 3.9.5-1
  • biosigDebian:13all versions · no fixed version listed
  • biosigDebian:12all versions · no fixed version listed

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2025-08-25
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-h7c4-7463-qgwv

Frequently asked questions

What is CVE-2025-53853?

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

Is CVE-2025-53853 actively exploited?

Active exploitation of CVE-2025-53853 has not been confirmed. Its EPSS score was 0.9% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-53853?

CVE-2025-53853 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record