CVE-2024-28757: fedoraproject fedora
Vulnerability summary
CVE-2024-28757 is a high (CVSS 7.5) vulnerability in fedoraproject fedora. EPSS estimates a 2.01% chance of exploitation in the next 30 days, higher than 80.8% of scored vulnerabilities. 1 public exploit is recorded.
Public exploit (GitHub, Date unknown)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 10 · Related 7Timeline
- 10-03-2024PublishedVulnerability first disclosed.
- 15-10-2026Last modifiedVulnerability information updated.
Description
libexpat through 2.6.1 allows an XML Entity Expansion attack when there is isolated use of external parsers (created via XML_ExternalEntityParserCreate).
CVSS metrics
8 scores · 8 sources · 1 version- OSV · AlpineEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · Red hatEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · WolfiEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · ChainguardEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
2.01%
Chance of exploitation in the next 30 days
Percentile
81%
Versus all other CVEs
30-day change
No change 0.00 pp
From 2.01% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundLibexpat
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu16 products
- ayttmAll versions (No fix recorded)
- cableswigAll versions (No fix recorded)
- cadaverAll versions (No fix recorded)
- coin3All versions (No fix recorded)
- expatAll versions (No fix recorded) | < 2.4.7-1ubuntu0.3
Netapp12 products
Redhat4 products
- expat< 0:2.5.0-2.el9_4
- expat-debuginfo< 0:2.5.0-2.el9_4
- expat-debugsource< 0:2.5.0-2.el9_4
- expat-devel< 0:2.5.0-2.el9_4
Debian2 products
- expat< 2.5.0-1+deb12u4 | < 2.6.1-2
- libxmltokAll versions (No fix recorded)
Alpine1 product
- expat< 2.6.2-r0
Chainguard1 product
- expat< 2.6.2-r0
Fedoraproject1 product
- fedoraEOL38 | 39 | 40
Libexpat_project1 product
- libexpat< 2.6.2
Opensuse1 product
- expat&distro=openSUSE Tumbleweed< 2.6.2-1.1
Wolfi1 product
- expat< 2.6.2-r0
10 vendors · 40 products
