CVE-2020-36431

Name: CVE-2020-36431
Creator: NVD / NIST
Published: 2021-07-20T07:15:07.86+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.27%

Last modified Jun 17, 2026

CVE-2020-36431 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. Unicorn Engine 1.0.2 has an out-of-bounds write in helper_wfe_arm.. EPSS estimates a 0.27% chance of exploitation in the next 30 days.

Description

Unicorn Engine 1.0.2 has an out-of-bounds write in helper_wfe_arm.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.27%

19.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Unicorn-Engine	Unicorn Engine	1.0.2

References

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20245Patch, Third Party Advisory
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/unicorn/OSV-2020-837.yamlThird Party Advisory
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20245Patch, Third Party Advisory
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/unicorn/OSV-2020-837.yamlThird Party Advisory

Timeline

Published: Jul 20, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-36431?

Unicorn Engine 1.0.2 has an out-of-bounds write in helper_wfe_arm.

How severe is CVE-2020-36431?

CVE-2020-36431 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.27% probability of exploitation in the next 30 days.

How do I fix CVE-2020-36431?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-36431?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST