How severe is CVE-2024-21812?

CVE-2024-21812 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-2024-21812 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-21812?

CVE-2024-21812 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-2024-21812?

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-2024-21812 have an EU (EUVD) identifier?

Yes. CVE-2024-21812 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19424.

When was CVE-2024-21812 published?

CVE-2024-21812 was published on 2024-02-20 and last updated on 2026-06-17.

CVE-2024-21812

CVE-2024-21812 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: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-19424
Weakness: CWE-190
Affected product: Libbiosig Project Libbiosig
Published: 2024-02-20
Last modified: 2026-06-17

Description

An integer overflow vulnerability exists in the sopen_FAMOS_read functionality of The Biosig Project libbiosig 2.5.0 and Master Branch (ab0ee111). A specially crafted .famos file can lead to an out-of-bounds write which in turn can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.

Frequently asked questions

What is CVE-2024-21812?: An integer overflow vulnerability exists in the sopen_FAMOS_read functionality of The Biosig Project libbiosig 2.5.0 and Master Branch (ab0ee111). A specially crafted .famos file can lead to an out-of-bounds write which in turn can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.
How severe is CVE-2024-21812?: CVE-2024-21812 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-2024-21812 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-21812?: CVE-2024-21812 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-2024-21812?: 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-2024-21812 have an EU (EUVD) identifier?: Yes. CVE-2024-21812 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19424.
When was CVE-2024-21812 published?: CVE-2024-21812 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:*:*:*:*:*:*:*

More vulnerabilities in Libbiosig Project Libbiosig

CVE-2026-22891 — Critical (CVSS 9.8): A heap-based buffer overflow vulnerability exists in the Intan CLP parsing functionality of The Biosig Project…
CVE-2025-66048 — Critical (CVSS 9.8): Several stack-based buffer overflow vulnerabilities exists in the MFER parsing functionality of The Biosig Project…
CVE-2025-66047 — Critical (CVSS 9.8): Several stack-based buffer overflow vulnerabilities exists in the MFER parsing functionality of The Biosig Project…
CVE-2025-66046 — Critical (CVSS 9.8): Several stack-based buffer overflow vulnerabilities exists in the MFER parsing functionality of The Biosig Project…
CVE-2025-66045 — Critical (CVSS 9.8): Several stack-based buffer overflow vulnerabilities exists in the MFER parsing functionality of The Biosig Project…
CVE-2025-66044 — Critical (CVSS 9.8): Several stack-based buffer overflow vulnerabilities exists in the MFER parsing functionality of The Biosig Project…

All CVEs affecting Libbiosig Project Libbiosig →

Other CWE-190 (Integer Overflow or Wraparound) vulnerabilities

CVE-2026-4689 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability was…
CVE-2026-24814 — Critical (CVSS 10.0): Integer Overflow or Wraparound vulnerability in swoole swoole-src (thirdparty/hiredis modules). This vulnerability is…
CVE-2025-64721 — Critical (CVSS 10.0): Sandboxie is a sandbox-based isolation software for 32-bit and 64-bit Windows NT-based operating systems. In versions…
CVE-2015-5108 — Critical (CVSS 10.0): Integer overflow in Adobe Reader and Acrobat 10.x before 10.1.15 and 11.x before 11.0.12, Acrobat and Acrobat Reader DC…
CVE-2015-5097 — Critical (CVSS 10.0): Integer overflow in Adobe Reader and Acrobat 10.x before 10.1.15 and 11.x before 11.0.12, Acrobat and Acrobat Reader DC…
CVE-2013-2555 — Critical (CVSS 10.0): Integer overflow in Adobe Flash Player before 10.3.183.75 and 11.x before 11.7.700.169 on Windows and Mac OS X, before…

Browse all CWE-190 (Integer Overflow or Wraparound) vulnerabilities →