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CVE-2026-34540

MEDIUM
Heap-based Buffer Overflow (CWE-122)
2026-03-31 security-advisories@github.com
Buffer Overflow Heap Overflow
6.2
CVSS 3.1
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CVSS VectorNVD

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

Lifecycle Timeline

2
Analysis Generated
Mar 31, 2026 - 22:22 vuln.today
CVE Published
Mar 31, 2026 - 22:16 nvd
MEDIUM 6.2

DescriptionNVD

iccDEV provides a set of libraries and tools for working with ICC color management profiles. Prior to version 2.3.1.6, a crafted ICC profile can trigger a heap-buffer-overflow (HBO) in icMemDump() when iccDumpProfile attempts to dump/describe malformed tag contents. The issue is observable under AddressSanitizer as an out-of-bounds heap read in icMemDump(...) at IccProfLib/IccUtil.cpp:1002, reachable via CIccTagUnknown::Describe(). This issue has been patched in version 2.3.1.6.

AnalysisAI

Heap buffer overflow in iccDEV prior to version 2.3.1.6 allows denial of service via a crafted ICC color profile that triggers out-of-bounds heap read in icMemDump() when iccDumpProfile processes malformed tag contents. The vulnerability affects local attackers without authentication or user interaction, though the practical attack surface depends on how iccDumpProfile is invoked in consuming applications. …

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CVE-2026-34540 vulnerability details – vuln.today
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