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Vulnerabilities

Vulnerability · CVE-2024-28757

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

Published Mar 10, 2024 · catalog updated Oct 15, 2026 · libexpat project

Check if you run it

No confirmed exploitation is on record for CVE-2024-28757. EPSS is 2.01%. Act only if a listed version of libexpat project is installed.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
2.01%
Remediation
Advisory link
Affected products
cpe fedoraproject/fedora · cpe libexpat project/libexpat · cpe netapp/active iq unified manager · cpe netapp/h300s firmware · cpe netapp/h410s firmware · cpe netapp/h500s firmware

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

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe fedoraproject/fedora38
  • cpe fedoraproject/fedora39
  • cpe fedoraproject/fedora40
  • cpe libexpat project/libexpatversion unspecified
  • cpe netapp/active iq unified managerversion unspecified
  • cpe netapp/h300s firmwareversion unspecified
  • cpe netapp/h410s firmwareversion unspecified
  • cpe netapp/h500s firmwareversion unspecified
  • cpe netapp/h700s firmwareversion unspecified
  • cpe netapp/oncommand workflow automationversion unspecified
  • cpe netapp/ontap9
  • cpe netapp/ontap tools10

How to fix CVE-2024-28757

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2024-28757. EPSS is 2.01%. Act only if a listed version of libexpat project is installed.

Which versions are affected?

Compare what you have installed with netapp/ontap tools 10. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-776. EPSS 2.01%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 10, 2024 · NIST NVD

    Detected

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

  2. Oct 15, 2026 · NIST NVD

    Updated

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

Sources

  • CVE.orgVulnerability recordCVE-2024-28757

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2024-28757

    30-day exploitation probability 2.0%

    first.org
  • NIST NVDVulnerability recordCVE-2024-28757

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

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 16, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.