CVE-2022-27938

Name: CVE-2022-27938
Creator: NVD / NIST
Published: 2022-03-26T13:15:07.537+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.60%

Last modified Jun 17, 2026

CVE-2022-27938 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. stb_image.h (aka the stb image loader) 2.19, as used in libsixel and other products, has a reachable assertion in stbi__create_png_image_raw.. EPSS estimates a 0.60% chance of exploitation in the next 30 days.

Description

stb_image.h (aka the stb image loader) 2.19, as used in libsixel and other products, has a reachable assertion in stbi__create_png_image_raw.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.60%

44.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-617

Affected Software

Vendor	Product	Versions
Libsixel	Libsixel	< 1.10.4
Saitoha	Libsixel	< 1.8.7

References

https://github.com/saitoha/libsixel/issues/163Exploit, Issue Tracking, Patch, Third Party Advisory
https://github.com/saitoha/libsixel/issues/163Exploit, Issue Tracking, Patch, Third Party Advisory

Timeline

Published: Mar 26, 2022
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2022-27938?

stb_image.h (aka the stb image loader) 2.19, as used in libsixel and other products, has a reachable assertion in stbi__create_png_image_raw.

How severe is CVE-2022-27938?

CVE-2022-27938 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.60% probability of exploitation in the next 30 days.

How do I fix CVE-2022-27938?

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-2022-27938?

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

Scan your code now

Source: NVD / NIST