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CVE-2020-28241

18
FAUCET Score

CVE-2020-28241 describes a heap-based buffer over-read vulnerability in libmaxminddb before version 1.4.3, specifically within the dump_entry_data_list function in maxminddb.c, affecting various Debian and Fedora distributions and the libmaxminddb library itself. With a CVSS score of 6.5 (Medium), this vulnerability can be exploited remotely with low attack complexity, requiring user interaction, and could lead to a high impact on availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.4.3CPE matchmatch criteria
cpe:2.3:a:maxmind:libmaxminddb:*:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
32CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
33CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.13%
Probability of exploitation in next 30 days
EPSS Percentile
80.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0213 is in the 90th percentile among its peer group of 26,219 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (7)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: libmaxminddb-0:1.2.0-10.el8_9.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.6 Extended Update SupportFixed in: libmaxminddb-0:1.2.0-10.el8_6.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.8 Extended Update SupportFixed in: libmaxminddb-0:1.2.0-10.el8_8.1
View patch
redhatpatch availablevia redhat_api
Product: RHEL-8 based Middleware ContainersFixed in: rh-sso-7/sso76-openshift-rhel8:7.6-42
View patch
redhatpatch availablevia redhat_api
Product: RHEL-8 based Middleware ContainersFixed in: rh-sso-7/sso7-rhel8-operator-bundle:7.6.7-4
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: libmaxminddb

Vendor Advisories (1)

redhatCVE-2020-28241Moderate

libmaxminddb: improper initialization in dump_entry_data_list() in maxminddb.c

Aug 4, 2020

References

github.com / maxmind/libmaxminddb/compare/1.4.2...1.4.3
PatchThird Party Advisory
github.com / maxmind/libmaxminddb/issues/236
ExploitPatchThird Party Advisory
github.com / maxmind/libmaxminddb/pull/237
PatchThird Party Advisory
lists.debian.org / debian-lts-announce/2020/11/msg00019.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/6WUK4UCOB5FJVK36E22IRLEYGKMUWGBG
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/ELTOHZBPO6XVUVADP4DPZBNQCPTYOQBV
security.gentoo.org / glsa/202011-15
Third Party Advisory