CVE-2024-21812
CWE-190Published: February 20, 2024· Updated: Jun 17, 2026
Official 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.
Risk Analysis
An integer overflow in libbiosig leads to an out-of-bounds write, enabling arbitrary code execution when processing a malicious .famos file. This critical flaw is remotely exploitable without authentication.
There is no known public exploit for this vulnerability, and it is not tracked in the CISA KEV catalog.
Apply the latest security updates for libbiosig or upgrade the affected software packages.
Technical Analysis
CVE-2024-21812 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (4)
Quick Facts
Related CVEs (CWE-190)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2024-21812 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts