CVE-2020-28241

Name: CVE-2020-28241
Creator: NVD / NIST
Published: 2020-11-06T05:15:10.973+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 2.13%

Last modified Jun 17, 2026

CVE-2020-28241 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. libmaxminddb before 1.4.3 has a heap-based buffer over-read in dump_entry_data_list in maxminddb.c.. EPSS estimates a 2.13% chance of exploitation in the next 30 days.

Description

libmaxminddb before 1.4.3 has a heap-based buffer over-read in dump_entry_data_list in maxminddb.c.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

2.13%

79.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions
Maxmind	Libmaxminddb	< 1.4.3
Debian	Debian Linux	9.0
Fedoraproject	Fedora	32
Fedoraproject	Fedora	33

References

https://github.com/maxmind/libmaxminddb/compare/1.4.2...1.4.3Patch, Third Party Advisory
https://github.com/maxmind/libmaxminddb/issues/236Exploit, Patch, Third Party Advisory
https://github.com/maxmind/libmaxminddb/pull/237Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/11/msg00019.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6WUK4UCOB5FJVK36E22IRLEYGKMUWGBG/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ELTOHZBPO6XVUVADP4DPZBNQCPTYOQBV/
https://security.gentoo.org/glsa/202011-15Third Party Advisory
https://github.com/maxmind/libmaxminddb/compare/1.4.2...1.4.3Patch, Third Party Advisory
https://github.com/maxmind/libmaxminddb/issues/236Exploit, Patch, Third Party Advisory
https://github.com/maxmind/libmaxminddb/pull/237Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/11/msg00019.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6WUK4UCOB5FJVK36E22IRLEYGKMUWGBG/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ELTOHZBPO6XVUVADP4DPZBNQCPTYOQBV/
https://security.gentoo.org/glsa/202011-15Third Party Advisory

Timeline

Published: Nov 6, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-28241?

libmaxminddb before 1.4.3 has a heap-based buffer over-read in dump_entry_data_list in maxminddb.c.

How severe is CVE-2020-28241?

CVE-2020-28241 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 2.13% probability of exploitation in the next 30 days.

How do I fix CVE-2020-28241?

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-2020-28241?

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

Scan your code now

Source: NVD / NIST