How severe is CVE-2024-21795?

CVE-2024-21795 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-2024-21795 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-21795?

CVE-2024-21795 primarily affects Libbiosig Project Libbiosig. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-21795?

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-2024-21795 have an EU (EUVD) identifier?

Yes. CVE-2024-21795 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19409.

When was CVE-2024-21795 published?

CVE-2024-21795 was published on 2024-02-20 and last updated on 2026-06-17.

CVE-2024-21795

CVE-2024-21795 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-787.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-19409
Weakness: CWE-787
Affected product: Libbiosig Project Libbiosig
Published: 2024-02-20
Last modified: 2026-06-17

Description

A heap-based buffer overflow vulnerability exists in the .egi parsing functionality of The Biosig Project libbiosig 2.5.0 and Master Branch (ab0ee111). A specially crafted .egi file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.

Frequently asked questions

What is CVE-2024-21795?: A heap-based buffer overflow vulnerability exists in the .egi parsing functionality of The Biosig Project libbiosig 2.5.0 and Master Branch (ab0ee111). A specially crafted .egi file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.
How severe is CVE-2024-21795?: CVE-2024-21795 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-2024-21795 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-21795?: CVE-2024-21795 primarily affects Libbiosig Project Libbiosig. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-21795?: 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-2024-21795 have an EU (EUVD) identifier?: Yes. CVE-2024-21795 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19409.
When was CVE-2024-21795 published?: CVE-2024-21795 was published on 2024-02-20 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:libbiosig_project:libbiosig:2.5.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:*

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