Home / CVE DB / CVE-2024-45491
Standard
Vulnerability Identifier

CVE-2024-45491

2024-08-30
Severity Assessment
9.8
CRITICAL
CVSS v3.x Score
Clinical Analysis (Description)

An issue was discovered in libexpat before 2.6.3. dtdCopy in xmlparse.c can have an integer overflow for nDefaultAtts on 32-bit platforms (where UINT_MAX equals SIZE_MAX).

Vector Sequencing

Attack Parameters

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Impact Consequences

Technical Impact

Unchanged
Scope
High
Confidentiality
High
Integrity
High
Availability
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Classification

CWE-CWE-190

Affected Population

Affected Configurations

Total: 38 detected entries

Software List Scrollable
li
libexpat
Vendor: libexpat_project • v2.3.0
li
libexpat
Vendor: libexpat_project • v2.2.2
li
libexpat
Vendor: libexpat_project • v2.6.0
li
libexpat
Vendor: libexpat_project • v2.4.8
li
libexpat
Vendor: libexpat_project • v1.95.0
li
libexpat
Vendor: libexpat_project • v2.2.7
li
libexpat
Vendor: libexpat_project • v1.95.4
li
libexpat
Vendor: libexpat_project • v2.0.0
li
libexpat
Vendor: libexpat_project • v2.4.0
li
libexpat
Vendor: libexpat_project • v2.1.0
li
libexpat
Vendor: libexpat_project • v1.95.1
li
libexpat
Vendor: libexpat_project • v2.2.0
li
libexpat
Vendor: libexpat_project • v2.2.8
li
libexpat
Vendor: libexpat_project • v2.4.9
li
libexpat
Vendor: libexpat_project • v2.2.5
li
libexpat
Vendor: libexpat_project • v2.2.6
li
libexpat
Vendor: libexpat_project • v2.2.3
li
libexpat
Vendor: libexpat_project • v1.95.8
li
libexpat
Vendor: libexpat_project • v2.2.1
li
libexpat
Vendor: libexpat_project • v2.2.4
li
libexpat
Vendor: libexpat_project • v2.4.3
li
libexpat
Vendor: libexpat_project • v1.95.5
li
libexpat
Vendor: libexpat_project • v2.4.4
li
libexpat
Vendor: libexpat_project • v2.6.1
li
libexpat
Vendor: libexpat_project • v2.2.10
li
libexpat
Vendor: libexpat_project • v2.4.7
li
libexpat
Vendor: libexpat_project • v1.95.6
li
libexpat
Vendor: libexpat_project • v1.95.2
li
libexpat
Vendor: libexpat_project • v2.5.0
li
libexpat
Vendor: libexpat_project • v2.1.1
li
libexpat
Vendor: libexpat_project • v1.95.7
li
libexpat
Vendor: libexpat_project • v2.6.2
li
libexpat
Vendor: libexpat_project • v2.4.1
li
libexpat
Vendor: libexpat_project • v2.0.1
li
libexpat
Vendor: libexpat_project • v1.95.3
li
libexpat
Vendor: libexpat_project • v2.4.6
li
libexpat
Vendor: libexpat_project • v2.2.9
li
libexpat
Vendor: libexpat_project • v2.4.5
Timeline

Time Line

PUBLICATION
30 Aug 2024
MODIFICATION
04 Nov 2025
FIRST PATCH
01 Oct 2025
Impact Statistics

Key Metrics

CVSS Score
9.8
CRITICAL
Products
38
Affected
Patches
3
Available
Remediation Protocol

Recommended Solution

No automatic solution found. Check vendor references.
Recommended Actions for Administrators

Immediate Action Plan

1. Inventory

Identify all affected systems in your infrastructure.

2. Assessment

Assess exposure and criticality for your organization.

3. Mitigation

Apply patches or available workarounds.

4. Verification

Test and confirm effectiveness of applied measures.

⚠️ MAXIMUM PRIORITY - Immediate action required