What is CVE-2025-3194?

CVE-2025-3194 is a high-severity vulnerability in Bigint-Buffer, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2025-04-04.

How severe is CVE-2025-3194?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2025-3194 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Bigint-Buffer

CVE-2025-3194

Versions of the package bigint-buffer from 0.0.0 are vulnerable to Buffer Overflow in the toBigIntLE() function. Attackers can exploit this to crash the application.

Vulnerability class: Buffer Overflow

EPSS: 0.006 (43.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

N/a Bigint-buffer — versions 0.0.0

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

Public proof-of-concept exploits

LoserLab/bigint-buffer-safe

References

Frequently asked questions

What is CVE-2025-3194?: CVE-2025-3194 is a high-severity vulnerability in Bigint-Buffer, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2025-04-04.
How severe is CVE-2025-3194?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2025-3194 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.