CVE-2026-21676

HIGH
2026-01-06 [email protected]
8.8
CVSS 3.1
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CVSS Vector

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

Lifecycle Timeline

4
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
PoC Detected
Jan 12, 2026 - 20:55 vuln.today
Public exploit code
Patch Released
Jan 12, 2026 - 20:55 nvd
Patch available
CVE Published
Jan 06, 2026 - 04:15 nvd
HIGH 8.8

Tags

Buffer Overflow Heap Overflow Iccdev

Description

iccDEV provides a set of libraries and tools for working with ICC color management profiles. Versions 2.3.1 and below have a Heap-based Buffer Overflow in its CIccMBB::Validate function which checks tag data validity. This issue is fixed in version 2.3.1.1.

Analysis

Heap buffer overflow in iccDEV versions 2.3.1 and earlier allows remote attackers to execute arbitrary code or crash the application through malformed ICC color profile data processed by the CIccMBB::Validate function. Public exploit code exists for this vulnerability, which affects all users handling untrusted color profiles. …

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Remediation

Within 7 days: Identify all affected systems and apply vendor patches promptly. If patching is delayed, consider network segmentation to limit exposure.

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Priority Score

64
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +44
POC: +20

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CVE-2026-21676 vulnerability details – vuln.today
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