What is CVE-2023-40857?

CVE-2023-40857 is a high-severity vulnerability in Virustotal Yara, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2023-08-28.

How severe is CVE-2023-40857?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in Virustotal Yara

CVE-2023-40857

Buffer Overflow vulnerability in VirusTotal yara v.4.3.2 allows a remote attacker to execute arbtirary code via the yr_execute_cod function in the exe.c component.

Vulnerability class: Buffer Overflow

EPSS: 0.009 (55.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Virustotal Yara — versions 4.3.2
N/a — versions n/a

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

cve@mitre.org (Exploit, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2023-40857?: CVE-2023-40857 is a high-severity vulnerability in Virustotal Yara, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2023-08-28.
How severe is CVE-2023-40857?: High severity. CVSS v3 base score is 8.8 out of 10.