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Standard
Vulnerability Identifier

CVE-2025-66293

2025-12-03
Severity Assessment
7.1
HIGH
CVSS v3.x Score
Clinical Analysis (Description)

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. Prior to 1.6.52, an out-of-bounds read vulnerability in libpng's simplified API allows reading up to 1012 bytes beyond the png_sRGB_base[512] array when processing valid palette PNG images with partial transparency and gamma correction. The PNG files that trigger this vulnerability are valid per the PNG specification; the bug is in libpng's internal state management. Upgrade to libpng 1.6.52 or later.

Vector Sequencing

Attack Parameters

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

Technical Impact

Unchanged
Scope
Low
Confidentiality
None
Integrity
High
Availability
AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Weakness Classification

CWE-CWE-125

Timeline

Time Line

PUBLICATION
03 Dec 2025
MODIFICATION
16 Dec 2025
FIRST PATCH
14 Jan 2026
Impact Statistics

Key Metrics

CVSS Score
7.1
HIGH
Patches
2
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.