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CVE Record

CVE-2026-24407: iccDEV has Undefined Behavior in icSigCalcOp()

iccDEV provides libraries and tools for interacting with, manipulating, and applying ICC color management profiles. Versions 2.3.1.1 and below have Undefined Behavior in icSigCalcOp(). This occurs when user-controllable input is unsafely incorporated into ICC profile data or other structured binary blobs. Successful exploitation may allow an attacker to perform DoS, manipulate data, bypass application logic and Code Execution. This issue has been fixed in version 2.3.1.2.

HighCVSS 7.1Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2026-24407 affects iccDEV, software used to process ICC color profiles. A crafted profile or structured binary blob could trigger unsafe behavior. Reported impact includes denial of service, data manipulation, logic bypass, and possible code execution. The vendor states the issue is fixed in version 2.3.1.2.

Executive priority

Treat as a high-priority patch for systems handling external image, print, color, or profile data. Prioritize internet-facing or user-submission workflows first. No public active exploitation is cited, but the possible availability and code-execution impacts justify timely remediation.

Technical view

iccDEV versions 2.3.1.1 and below contain undefined behavior in icSigCalcOp() when user-controllable input is incorporated into ICC profile data or similar binary structures. CVSS 3.1 is 7.1: network-reachable, low complexity, no privileges, user interaction required, with low integrity and high availability impact.

Likely exposure

Exposure is most likely where applications, services, or pipelines use iccDEV to parse, manipulate, validate, or apply ICC profiles from users, partners, files, or automated workflows. Products embedding vulnerable iccDEV versions may also be exposed.

Exploitation context

The source bundle does not show known active exploitation, and CISA KEV status is false. Exploitation appears to require user interaction, likely by causing a vulnerable application to process attacker-controlled ICC profile data or a related structured binary blob.

Researcher notes

The public record attributes the flaw to undefined behavior in icSigCalcOp() and maps it to CWE-20 and CWE-758. Available sources name the fixed version and a commit, but the provided evidence does not include exploit details or confirmed in-the-wild abuse.

Mitigation direction

  • Upgrade iccDEV to version 2.3.1.2 or later.
  • Inventory applications and libraries that bundle or link iccDEV.
  • Restrict processing of untrusted ICC profiles where upgrade is delayed.
  • Monitor the GitHub advisory for additional vendor guidance.

Validation and detection

  • Check deployed iccDEV versions for 2.3.1.1 or below.
  • Review dependency manifests and embedded third-party library copies.
  • Identify workflows accepting ICC profiles from external or untrusted sources.
  • Confirm upgraded builds include the vendor fix commit or release.
Prepared
Confidence
high
Sources
5

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-20: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cwe · low confidence lookup

CWE-758: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-24407 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
7.1 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
4Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.1CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H2.84.2Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

7.1High
CVSS 3.1 vector shape for CVE-2026-24407Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
InternationalColorConsortiumiccDEV< 2.3.1.2Listed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-20 · source CWE mapping

Improper Input Validation

Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

CWE-758 · source CWE mapping

Reliance on Undefined, Unspecified, or Implementation-Defined Behavior

Reliance on Undefined, Unspecified, or Implementation-Defined Behavior represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.