What is CVE-2024-27532?

CVE-2024-27532 is a high-severity vulnerability in Bytecodealliance Webassembly Micro Runtime, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2024-11-08.

How severe is CVE-2024-27532?

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

NULL pointer dereference in Bytecodealliance Webassembly Micro Runtime

CVE-2024-27532

wasm-micro-runtime (aka WebAssembly Micro Runtime or WAMR) 06df58f is vulnerable to NULL Pointer Dereference in function `block_type_get_result_types.

Published 2024-11-08 · 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: 0.005 (41.6th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 41.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Bytecodealliance Webassembly Micro Runtime

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

github.com/bytecodealliance/wasm-micro-runtime/issues/3130 (Exploit, Issue Tracking)
gist.github.com/haruki3hhh/e468ac3b3234f9bc42a9cc367457119a (Third Party Advisory)

Frequently asked questions

What is CVE-2024-27532?: CVE-2024-27532 is a high-severity vulnerability in Bytecodealliance Webassembly Micro Runtime, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2024-11-08.
How severe is CVE-2024-27532?: High severity. CVSS v3 base score is 7.5 out of 10.