CVE-2023-27117

Name: CVE-2023-27117
Creator: NVD / NIST
Published: 2023-03-10T02:15:58.553+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.32%

Last modified Jun 17, 2026

CVE-2023-27117 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. WebAssembly v1.0.29 was discovered to contain a heap overflow via the component component wabt::Node::operator.. EPSS estimates a 0.32% chance of exploitation in the next 30 days.

Description

WebAssembly v1.0.29 was discovered to contain a heap overflow via the component component wabt::Node::operator.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

0.32%

23.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Webassembly	Webassembly	1.0.29

References

https://github.com/WebAssembly/wabt/issues/1989Exploit, Issue Tracking
https://github.com/WebAssembly/wabt/issues/1989Exploit, Issue Tracking

Timeline

Published: Mar 10, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-27117?

WebAssembly v1.0.29 was discovered to contain a heap overflow via the component component wabt::Node::operator.

How severe is CVE-2023-27117?

CVE-2023-27117 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.32% probability of exploitation in the next 30 days.

How do I fix CVE-2023-27117?

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-2023-27117?

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

Scan your code now

Source: NVD / NIST