CVE-2026-25210

MEDIUM
2026-01-30 [email protected]
6.9
CVSS 3.1
Share

CVSS Vector

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
Attack Vector
Local
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
Low

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 22:00 vuln.today
Patch Released
Mar 10, 2026 - 18:17 nvd
Patch available
CVE Published
Jan 30, 2026 - 07:16 nvd
MEDIUM 6.9

Tags

Integer Overflow Libexpat Redhat Suse

Description

In libexpat before 2.7.4, the doContent function does not properly determine the buffer size bufSize because there is no integer overflow check for tag buffer reallocation.

Analysis

Libexpat versions before 2.7.4 are vulnerable to integer overflow in the doContent function during tag buffer reallocation, enabling local attackers with no privileges to achieve high-impact confidentiality and integrity violations. The flaw stems from missing overflow validation when calculating buffer sizes, allowing memory corruption that could lead to information disclosure or code execution. …

Sign in for full analysis, threat intelligence, and remediation guidance.

Remediation

Within 30 days: Identify affected systems running libexpat and apply vendor patches as part of regular patch cycle. Vendor patch is available.

Sign in for detailed remediation steps.

Full analysis requires sign-in

Get intelligence summaries, risk assessment, exploit details, threat intel, and remediation guidance.

Sign in - Free

Priority Score

35
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +34
POC: 0

Vendor Status

Share

CVE-2026-25210 vulnerability details – vuln.today
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy