English
EN
Français
FR
Language
English
EN
Français
FR

CVE Vulnerabilities

Posts & Pages

No results found for ""

Try different keywords or check spelling

Search in CVE database, posts & pages • Press ESC to close

DNA View

Critical Severity Vulnerability

This vulnerability has been rated as Critical severity. Immediate action is recommended.

CVE-2024-45491

Critical
Low Medium High Critical
9.8
CVSS Score
Published: Aug 30, 2024
Last Modified: Nov 04, 2025
CWE: CWE-190

Vulnerability 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).

CVSS Metrics

Common Vulnerability Scoring System

Vector String:

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
N
Attack Complexity
L
Privileges Required
N
User Interaction
N
Scope
U
Confidentiality
H
Integrity
H
Availability
H

Known Affected Software

38 configuration(s) from 1 vendor(s)

libexpat
Version:
2.3.0
CPE:
cpe:2.3:a:libexpat_project:libexpat:2.3.0:*:*:*:*:*:*:*
libexpat
Version:
2.2.2
CPE:
cpe:2.3:a:libexpat_project:libexpat:2.2.2:*:*:*:*:*:*:*
libexpat
Version:
2.6.0
CPE:
cpe:2.3:a:libexpat_project:libexpat:2.6.0:*:*:*:*:*:*:*
libexpat
Version:
2.4.8
CPE:
cpe:2.3:a:libexpat_project:libexpat:2.4.8:*:*:*:*:*:*:*
libexpat
Version:
1.95.0
CPE:
cpe:2.3:a:libexpat_project:libexpat:1.95.0:*:*:*:*:*:*:*
libexpat
Version:
2.2.7
CPE:
cpe:2.3:a:libexpat_project:libexpat:2.2.7:*:*:*:*:*:*:*
libexpat
Version:
1.95.4
CPE:
cpe:2.3:a:libexpat_project:libexpat:1.95.4:*:*:*:*:*:*:*
libexpat
Version:
2.0.0
CPE:
cpe:2.3:a:libexpat_project:libexpat:2.0.0:*:*:*:*:*:*:*
libexpat
Version:
2.4.0
CPE:
cpe:2.3:a:libexpat_project:libexpat:2.4.0:*:*:*:*:*:*:*
libexpat
Version:
2.1.0
CPE:
cpe:2.3:a:libexpat_project:libexpat:2.1.0:*:*:*:*:*:*:*
libexpat
Version:
1.95.1
CPE:
cpe:2.3:a:libexpat_project:libexpat:1.95.1:*:*:*:*:*:*:*
libexpat
Version:
2.2.0
CPE:
cpe:2.3:a:libexpat_project:libexpat:2.2.0:*:*:*:*:*:*:*
libexpat
Version:
2.2.8
CPE:
cpe:2.3:a:libexpat_project:libexpat:2.2.8:*:*:*:*:*:*:*
libexpat
Version:
2.4.9
CPE:
cpe:2.3:a:libexpat_project:libexpat:2.4.9:*:*:*:*:*:*:*
libexpat
Version:
2.2.5
CPE:
cpe:2.3:a:libexpat_project:libexpat:2.2.5:*:*:*:*:*:*:*
libexpat
Version:
2.2.6
CPE:
cpe:2.3:a:libexpat_project:libexpat:2.2.6:*:*:*:*:*:*:*
libexpat
Version:
2.2.3
CPE:
cpe:2.3:a:libexpat_project:libexpat:2.2.3:*:*:*:*:*:*:*
libexpat
Version:
1.95.8
CPE:
cpe:2.3:a:libexpat_project:libexpat:1.95.8:*:*:*:*:*:*:*
libexpat
Version:
2.2.1
CPE:
cpe:2.3:a:libexpat_project:libexpat:2.2.1:*:*:*:*:*:*:*
libexpat
Version:
2.2.4
CPE:
cpe:2.3:a:libexpat_project:libexpat:2.2.4:*:*:*:*:*:*:*
libexpat
Version:
2.4.3
CPE:
cpe:2.3:a:libexpat_project:libexpat:2.4.3:*:*:*:*:*:*:*
libexpat
Version:
1.95.5
CPE:
cpe:2.3:a:libexpat_project:libexpat:1.95.5:*:*:*:*:*:*:*
libexpat
Version:
2.4.4
CPE:
cpe:2.3:a:libexpat_project:libexpat:2.4.4:*:*:*:*:*:*:*
libexpat
Version:
2.6.1
CPE:
cpe:2.3:a:libexpat_project:libexpat:2.6.1:*:*:*:*:*:*:*
libexpat
Version:
2.2.10
CPE:
cpe:2.3:a:libexpat_project:libexpat:2.2.10:*:*:*:*:*:*:*
libexpat
Version:
2.4.7
CPE:
cpe:2.3:a:libexpat_project:libexpat:2.4.7:*:*:*:*:*:*:*
libexpat
Version:
1.95.6
CPE:
cpe:2.3:a:libexpat_project:libexpat:1.95.6:*:*:*:*:*:*:*
libexpat
Version:
1.95.2
CPE:
cpe:2.3:a:libexpat_project:libexpat:1.95.2:*:*:*:*:*:*:*
libexpat
Version:
2.5.0
CPE:
cpe:2.3:a:libexpat_project:libexpat:2.5.0:*:*:*:*:*:*:*
libexpat
Version:
2.1.1
CPE:
cpe:2.3:a:libexpat_project:libexpat:2.1.1:*:*:*:*:*:*:*
libexpat
Version:
1.95.7
CPE:
cpe:2.3:a:libexpat_project:libexpat:1.95.7:*:*:*:*:*:*:*
libexpat
Version:
2.6.2
CPE:
cpe:2.3:a:libexpat_project:libexpat:2.6.2:*:*:*:*:*:*:*
libexpat
Version:
2.4.1
CPE:
cpe:2.3:a:libexpat_project:libexpat:2.4.1:*:*:*:*:*:*:*
libexpat
Version:
2.0.1
CPE:
cpe:2.3:a:libexpat_project:libexpat:2.0.1:*:*:*:*:*:*:*
libexpat
Version:
1.95.3
CPE:
cpe:2.3:a:libexpat_project:libexpat:1.95.3:*:*:*:*:*:*:*
libexpat
Version:
2.4.6
CPE:
cpe:2.3:a:libexpat_project:libexpat:2.4.6:*:*:*:*:*:*:*
libexpat
Version:
2.2.9
CPE:
cpe:2.3:a:libexpat_project:libexpat:2.2.9:*:*:*:*:*:*:*
libexpat
Version:
2.4.5
CPE:
cpe:2.3:a:libexpat_project:libexpat:2.4.5:*:*:*:*:*:*:*
This vulnerability affects 38 software configuration(s). Ensure you patch all affected systems.

Available Security Patches

3 patches available from vendors

View All Patches
Microsoft

2024-Oct-CVE-2024-45491

CVE-2024-45491: None

Severity
Unknown
Released
Oct 01, 2025
Security Update
View Details Vendor Page
Microsoft

2025-Mar-CVE-2024-45491

CVE-2024-45491: None

Severity
Unknown
Released
Sep 04, 2025
Security Update
View Details Vendor Page
Oracle

CPUJAN2025

Oracle Critical Patch Update Advisory - January 2025

Severity
Critical
Released
Jan 21, 2025
Restart Required
Security Update
View Details Vendor Page
Browse All Security Patches

References & Resources

Severity Details

9.8
out of 10.0
Critical

Weakness Type (CWE)

CWE-190 Top 25 #22

Integer Overflow or Wraparound

Description
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value…
Exploit Likelihood
Medium
Typical Severity
High
Abstraction Level
Base
View CWE Details on MITRE

Key Information

Published Date
August 30, 2024

External Resources

NIST
NIST NVD
National Vulnerability Database
MT
MITRE CVE
Official CVE record