What is CVE-2024-34252?

CVE-2024-34252 is a high-severity vulnerability in Wasm3 Project, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2024-05-06.

How severe is CVE-2024-34252?

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

Is CVE-2024-34252 known to be exploited?

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

Buffer overflow in Wasm3 Project

CVE-2024-34252

wasm3 v0.5.0 was discovered to contain a global buffer overflow which leads to segmentation fault via the function "PreserveRegisterIfOccupied" in wasm3/source/m3_compile.c.

Vulnerability class: Buffer Overflow

Published 2024-05-06 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.006 (48.3th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Wasm3 Project — versions 0.5.0

Weakness classification (CWE)

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

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

github.com/wasm3/wasm3/issues/483 (Exploit, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2024-34252?: CVE-2024-34252 is a high-severity vulnerability in Wasm3 Project, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2024-05-06.
How severe is CVE-2024-34252?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2024-34252 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.