CVE-2020-24221

Name: CVE-2020-24221
Creator: NVD / NIST
Published: 2023-08-11T14:15:10.297+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.30%

Last modified Jun 17, 2026

CVE-2020-24221 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. An issue was discovered in GetByte function in miniupnp ngiflib version 0.4, allows local attackers to cause a denial of service (DoS) via crafted .gif file (infinite loop).. EPSS estimates a 0.30% chance of exploitation in the next 30 days.

Description

An issue was discovered in GetByte function in miniupnp ngiflib version 0.4, allows local attackers to cause a denial of service (DoS) via crafted .gif file (infinite loop).

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

0.30%

21.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-835

Affected Software

Vendor	Product	Versions
Miniupnp Project	Ngiflib	0.4

References

https://github.com/miniupnp/ngiflib/issues/17Exploit, Vendor Advisory
https://github.com/miniupnp/ngiflib/issues/17Exploit, Vendor Advisory

Timeline

Published: Aug 11, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-24221?

An issue was discovered in GetByte function in miniupnp ngiflib version 0.4, allows local attackers to cause a denial of service (DoS) via crafted .gif file (infinite loop).

How severe is CVE-2020-24221?

CVE-2020-24221 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.30% probability of exploitation in the next 30 days.

How do I fix CVE-2020-24221?

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-2020-24221?

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

Scan your code now

Source: NVD / NIST