CVE-2026-25583Public exploit

Heap overflow via undersized UTF-16 tag length

Published Feb 4, 2026 · Updated Feb 4, 2026

Heap buffer overflow in iccDEV before 2.3.1.3 allows attackers to corrupt memory by supplying a malformed ICC profile. CIccTagUtf16Text::Read subtracts the tag header size without first verifying that the declared tag is large enough, underflowing the length passed through CIccIO::Read16 to CIccFileIO::Read8 and its unchecked fread. Exploitation requires a user or consuming application to process the crafted profile and can crash the process or, in some contexts, execute arbitrary code.

CVSS severity7.8
High
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap buffer overflow in iccDEV before 2.3.1.3 allows attackers to corrupt memory by supplying a malformed ICC profile. CIccTagUtf16Text::Read subtracts the tag header size without first verifying that the declared tag is large enough, underflowing the length passed through CIccIO::Read16 to CIccFileIO::Read8 and its unchecked fread. Exploitation requires a user or consuming application to process the crafted profile and can crash the process or, in some contexts, execute arbitrary code.

The record

CVE
CVE-2026-25583
Published
Feb 4, 2026
Updated
Feb 4, 2026
Vendor
International Color Consortium
Product
iccDEV
Classifications
CWE-787, CWE-122, CWE-119, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 4, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2.3.1.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

International Color Consortium · iccDEVversion=< 2.3.1.3

Published CVSS scores

7.8GitHub, Inc.CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
CWE-122Heap-based Buffer Overflow
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1204.002Malicious File

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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