9.1

UBUNTU-CVE-2024-40896: libxml2 Ubuntu

CVSS: 9.1v3.1CriticalPublished
Published 23-12-2024Last modified 04-02-2026

Vulnerability summary

UBUNTU-CVE-2024-40896 is a critical (CVSS 9.1) vulnerability in libxml2 Ubuntu.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.1/10
010
Critical · v3.1 (OSV · Ubuntu), selected by version preference
EPSS score
Not scored
0%100%
No EPSS score yet
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 2

Timeline

  1. 23-12-2024
    PublishedVulnerability first disclosed.
  2. 04-02-2026
    Last modifiedVulnerability information updated.

Description

In libxml2 2.11 before 2.11.9, 2.12 before 2.12.9, and 2.13 before 2.13.3, the SAX parser can produce events for external entities even if custom SAX handlers try to override entity content (by setting "checked"). This makes classic XXE attacks possible.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

No EPSS score has been published for this record yet.

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu1 product
  • libxml2< 2.12.7+dfsg-3ubuntu0.1

1 vendor · 1 product

References

3 links