How severe is CVE-2025-52461?

CVE-2025-52461 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability high.

Is CVE-2025-52461 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-52461?

CVE-2025-52461 affects Libbiosig Project Libbiosig. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-52461?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-52461 have an EU (EUVD) identifier?

Yes. CVE-2025-52461 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25687.

When was CVE-2025-52461 published?

CVE-2025-52461 was published on 2025-08-25 and last updated on 2026-06-17.

CVE-2025-52461

CVE-2025-52461 is a high-severity vulnerability in Libbiosig Project Libbiosig with a CVSS 3.x base score of 8.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.

Key facts

Severity: High (CVSS 3.x base score 8.2)
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-25687
Weakness: CWE-125
Affected product: Libbiosig Project Libbiosig
Published: 2025-08-25
Last modified: 2026-06-17

Description

An out-of-bounds read vulnerability exists in the Nex parsing functionality of The Biosig Project libbiosig 3.9.0 and Master Branch (35a819fa). A specially crafted .nex file can lead to an information leak. An attacker can provide a malicious file to trigger this vulnerability.

Frequently asked questions

What is CVE-2025-52461?: An out-of-bounds read vulnerability exists in the Nex parsing functionality of The Biosig Project libbiosig 3.9.0 and Master Branch (35a819fa). A specially crafted .nex file can lead to an information leak. An attacker can provide a malicious file to trigger this vulnerability.
How severe is CVE-2025-52461?: CVE-2025-52461 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability high.
Is CVE-2025-52461 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-52461?: CVE-2025-52461 affects Libbiosig Project Libbiosig. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-52461?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-52461 have an EU (EUVD) identifier?: Yes. CVE-2025-52461 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25687.
When was CVE-2025-52461 published?: CVE-2025-52461 was published on 2025-08-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:libbiosig_project:libbiosig:3.9.0:*:*:*:*:*:*:*

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