CVE-2020-28248

Name: CVE-2020-28248
Creator: NVD / NIST
Published: 2021-02-20T00:15:12.483+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 2.22%

Last modified Jun 17, 2026

CVE-2020-28248 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. An integer overflow in the PngImg::InitStorage_() function of png-img before 3.1.0 leads to an under-allocation of heap memory and subsequently an exploitable heap-based buffer overflow when loading a crafted PNG file.. EPSS estimates a 2.22% chance of exploitation in the next 30 days.

Description

An integer overflow in the PngImg::InitStorage_() function of png-img before 3.1.0 leads to an under-allocation of heap memory and subsequently an exploitable heap-based buffer overflow when loading a crafted PNG file.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

2.22%

80.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Png-Img Project	Png-Img	< 3.1.0

References

https://github.com/gemini-testing/png-imgProduct
https://github.com/gemini-testing/png-img/commit/14ac462a32ca4b3b78f56502ac976d5b0222ce3dPatch, Third Party Advisory
https://github.com/gemini-testing/png-img/compare/v3.0.0...v3.1.0Release Notes, Third Party Advisory
https://securitylab.github.com/advisories/GHSL-2020-142-gemini-png-imgExploit, Third Party Advisory
https://github.com/gemini-testing/png-imgProduct
https://github.com/gemini-testing/png-img/commit/14ac462a32ca4b3b78f56502ac976d5b0222ce3dPatch, Third Party Advisory
https://github.com/gemini-testing/png-img/compare/v3.0.0...v3.1.0Release Notes, Third Party Advisory
https://securitylab.github.com/advisories/GHSL-2020-142-gemini-png-imgExploit, Third Party Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2020-28248?

How severe is CVE-2020-28248?

CVE-2020-28248 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 2.22% probability of exploitation in the next 30 days.

How do I fix CVE-2020-28248?

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-2020-28248?

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

Scan your code now

Source: NVD / NIST