How severe is CVE-2025-52581?

CVE-2025-52581 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-52581 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-52581?

CVE-2025-52581 affects Libbiosig Project Libbiosig. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-52581?

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

Does CVE-2025-52581 have an EU (EUVD) identifier?

Yes. CVE-2025-52581 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25668.

When was CVE-2025-52581 published?

CVE-2025-52581 was published on 2025-08-25 and last updated on 2026-06-17.

CVE-2025-52581

CVE-2025-52581 is a critical-severity vulnerability in Libbiosig Project Libbiosig with a CVSS 3.x base score of 9.8. 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-190.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-25668
Weakness: CWE-190
Affected product: Libbiosig Project Libbiosig
Published: 2025-08-25
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is CVE-2025-52581?: An integer overflow vulnerability exists in the GDF parsing functionality of The Biosig Project libbiosig 3.9.0 and Master Branch (35a819fa). A specially crafted GDF file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.
How severe is CVE-2025-52581?: CVE-2025-52581 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-52581 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-52581?: CVE-2025-52581 affects Libbiosig Project Libbiosig. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-52581?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-52581 have an EU (EUVD) identifier?: Yes. CVE-2025-52581 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25668.
When was CVE-2025-52581 published?: CVE-2025-52581 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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