CVE-2024-28757

7.5 HIGH 2% exploit odds Fix listed

What it is

libexpat through 2.6.1 allows an XML Entity Expansion attack when there is isolated use of external parsers (created via XML_ExternalEntityParserCreate).

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of service disruption.
Exploit odds: 2.0% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2024-03-10 05:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-10-15 01:17 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 2.0% in the next 30 days (EPSS).
Severity: 7.5 HIGH (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2024-03-10 05:15 UTC
Last modified: 2026-10-15 01:17 UTC
Exploit probability: 2.0% · EPSS, next 30 days
Weakness: CWE-776
Record status: Modified

Affected

Libexpat Project Libexpat < 2.6.2
Fedoraproject Fedora 38
Fedoraproject Fedora 39
Fedoraproject Fedora 40
Netapp Active Iq Unified Manager
Netapp Oncommand Workflow Automation
Netapp Ontap 9
Netapp Ontap Tools 10

Attack profile CVSS 3.1 · 7.5

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: High

Raw vector

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

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2024-28757.md and follow it. Check whether this project is affected by CVE-2024-28757. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record