Common Weakness Enumeration

CWE-476

Allowed

NULL Pointer Dereference

Abstraction: Base · Status: Stable

API response cwe.mitre.org

The product dereferences a pointer that it expects to be valid but is NULL.

6677 vulnerabilities reference this CWE, most recent first.

CVE-2026-21689 (GCVE-0-2026-21689)

Vulnerability from cvelistv5 – Published: 2026-01-07 21:46 – Updated: 2026-01-08 14:46
VLAI
Title
iccDEV has Type Confusion in CIccProfileXml::ParseBasic() at IccXML/IccLibXML/IccProfileXml.cpp
Summary
iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of International Color Consortium (ICC) color management profiles. Versions prior to 2.3.1.2 have a Type Confusion vulnerability in `CIccProfileXml::ParseBasic()` at `IccXML/IccLibXML/IccProfileXml.cpp`. This vulnerability affects users of the iccDEV library who process ICC color profiles. Version 2.3.1.2 contains a patch. No known workarounds are available.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-08 14:45 UTC
CWE
  • CWE-20 - Improper Input Validation
  • CWE-190 - Integer Overflow or Wraparound
  • CWE-232 - Improper Handling of Undefined Values
  • CWE-476 - NULL Pointer Dereference
  • CWE-690 - Unchecked Return Value to NULL Pointer Dereference
  • CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-21688 (GCVE-0-2026-21688)

Vulnerability from cvelistv5 – Published: 2026-01-07 21:43 – Updated: 2026-01-08 14:47
VLAI
Title
iccDEV has Type Confusion in SIccCalcOp::ArgsPushed() at IccProfLib/IccMpeCalc.cpp
Summary
iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of International Color Consortium (ICC) color management profiles. Versions prior to 2.3.1.2 have a Type Confusion vulnerability in `SIccCalcOp::ArgsPushed()` at `IccProfLib/IccMpeCalc.cpp`. This vulnerability affects users of the iccDEV library who process ICC color profiles. Version 2.3.1.2 contains a patch. No known workarounds are available.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-08 14:46 UTC
CWE
  • CWE-20 - Improper Input Validation
  • CWE-190 - Integer Overflow or Wraparound
  • CWE-476 - NULL Pointer Dereference
  • CWE-681 - Incorrect Conversion between Numeric Types
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-21680 (GCVE-0-2026-21680)

Vulnerability from cvelistv5 – Published: 2026-01-07 17:50 – Updated: 2026-01-07 18:09
VLAI
Title
iccDEV has Null Pointer Dereference in CIccProfile::CheckTagTypes()
Summary
iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of International Color Consortium (ICC) color management profiles. Versions prior to 2.3.1.2 have a NULL pointer dereference vulnerability. This vulnerability affects users of the iccDEV library who process ICC color profiles. Version 2.3.1.2 contains a patch. No known workarounds are available.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-07 18:08 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-21525 (GCVE-0-2026-21525)

Vulnerability from cvelistv5 – Published: 2026-02-10 17:51 – Updated: 2026-08-19 16:26
VLAI
Title
Windows Remote Access Connection Manager Denial of Service Vulnerability
Summary
Null pointer dereference in Windows Remote Access Connection Manager allows an unauthorized attacker to deny service locally.
Severity
6.2 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
SSVC
Exploitation: active Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-11 04:56 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
Microsoft Windows 10 Version 1607 Affected: 10.0.14393.0 , < 10.0.14393.8868 (custom)
Create a notification for this product.
Microsoft Windows 10 Version 1809 Affected: 10.0.17763.0 , < 10.0.17763.8389 (custom)
Create a notification for this product.
Microsoft Windows 10 Version 21H2 Affected: 10.0.19044.0 , < 10.0.19044.6937 (custom)
Create a notification for this product.
Microsoft Windows 10 Version 22H2 Affected: 10.0.19045.0 , < 10.0.19045.6937 (custom)
Create a notification for this product.
Microsoft Windows 11 version 22H3 Affected: 10.0.22631.0 , < 10.0.22631.6649 (custom)
Create a notification for this product.
Microsoft Windows 11 Version 23H2 Affected: 10.0.22631.0 , < 10.0.22631.6649 (custom)
Create a notification for this product.
Microsoft Windows 11 Version 24H2 Affected: 10.0.26100.0 , < 10.0.26100.7840 (custom)
Create a notification for this product.
Microsoft Windows 11 Version 25H2 Affected: 10.0.26200.0 , < 10.0.26200.7840 (custom)
Create a notification for this product.
Microsoft Windows 11 version 26H1 Affected: 10.0.28000.0 , < 10.0.28000.1575 (custom)
Create a notification for this product.
Microsoft Windows 11 Version 26H1 Affected: 10.0.28000.0 , < 10.0.28000.1575 (custom)
Create a notification for this product.
Microsoft Windows Server 2012 Affected: 6.2.9200.0 , < 6.2.9200.25923 (custom)
Create a notification for this product.
Microsoft Windows Server 2012 (Server Core installation) Affected: 6.2.9200.0 , < 6.2.9200.25923 (custom)
Create a notification for this product.
Microsoft Windows Server 2012 R2 Affected: 6.3.9600.0 , < 6.3.9600.23022 (custom)
Create a notification for this product.
Microsoft Windows Server 2012 R2 (Server Core installation) Affected: 6.3.9600.0 , < 6.3.9600.23022 (custom)
Create a notification for this product.
Microsoft Windows Server 2016 Affected: 10.0.14393.0 , < 10.0.14393.8868 (custom)
Create a notification for this product.
Microsoft Windows Server 2016 (Server Core installation) Affected: 10.0.14393.0 , < 10.0.14393.8868 (custom)
Create a notification for this product.
Microsoft Windows Server 2019 Affected: 10.0.17763.0 , < 10.0.17763.8389 (custom)
Create a notification for this product.
Microsoft Windows Server 2019 (Server Core installation) Affected: 10.0.17763.0 , < 10.0.17763.8389 (custom)
Create a notification for this product.
Microsoft Windows Server 2022 Affected: 10.0.20348.0 , < 10.0.20348.4773 (custom)
Create a notification for this product.
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) Affected: 10.0.25398.0 , < 10.0.25398.2149 (custom)
Create a notification for this product.
Microsoft Windows Server 2025 Affected: 10.0.26100.0 , < 10.0.26100.32370 (custom)
Create a notification for this product.
Microsoft Windows Server 2025 (Server Core installation) Affected: 10.0.26100.0 , < 10.0.26100.32370 (custom)
Create a notification for this product.
Date Public
2026-02-10 16:00
Show details on NVD website
To clipboard 

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CVE-2026-21506 (GCVE-0-2026-21506)

Vulnerability from cvelistv5 – Published: 2026-01-07 17:10 – Updated: 2026-01-07 18:30
VLAI
Title
iccDEV is Vulnerable to Null Pointer Dereference in CIccProfileXml::ParseBasic() Leading to Denial of Service
Summary
iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of ICC color management profiles. Prior to version 2.3.1.2, iccDEV is vulnerable to Null pointer dereference in CIccProfileXml::ParseBasic(), leading to denial of service. This issue has been patched in version 2.3.1.2.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-07 18:30 UTC
CWE
  • CWE-20 - Improper Input Validation
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-21503 (GCVE-0-2026-21503)

Vulnerability from cvelistv5 – Published: 2026-01-07 17:10 – Updated: 2026-01-07 21:53
VLAI
Title
iccDEV has Undefined Behavior - Null Pointer Passed to memcpy() in CIccTagSparseMatrixArray
Summary
iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of ICC color management profiles. Prior to version 2.3.1.2, iccDEV has undefined behavior due to a null pointer passed to memcpy() in CIccTagSparseMatrixArray. This issue has been patched in version 2.3.1.2.
Severity
6.1 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-07 21:53 UTC
CWE
  • CWE-20 - Improper Input Validation
  • CWE-131 - Incorrect Calculation of Buffer Size
  • CWE-476 - NULL Pointer Dereference
  • CWE-628 - Function Call with Incorrectly Specified Arguments
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-21502 (GCVE-0-2026-21502)

Vulnerability from cvelistv5 – Published: 2026-01-07 17:09 – Updated: 2026-01-07 18:21
VLAI
Title
NULL Pointer Dereference in iccDEV XML Tag Parser
Summary
iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of ICC color management profiles. Prior to version 2.3.1.2, iccDEV is vulnerable to NULL pointer dereference via the XML tag parser. This issue has been patched in version 2.3.1.2.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-07 18:15 UTC
CWE
  • CWE-20 - Improper Input Validation
  • CWE-252 - Unchecked Return Value
  • CWE-476 - NULL Pointer Dereference
  • CWE-690 - Unchecked Return Value to NULL Pointer Dereference
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-21499 (GCVE-0-2026-21499)

Vulnerability from cvelistv5 – Published: 2026-01-07 17:09 – Updated: 2026-01-07 18:21
VLAI
Title
NULL Pointer Dereference in iccDEV XML Parser
Summary
iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of ICC color management profiles. Prior to version 2.3.1.2, iccDEV is vulnerable to NULL pointer dereference via the XML parser. This issue has been patched in version 2.3.1.2.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-07 18:15 UTC
CWE
  • CWE-20 - Improper Input Validation
  • CWE-476 - NULL Pointer Dereference
  • CWE-690 - Unchecked Return Value to NULL Pointer Dereference
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-21498 (GCVE-0-2026-21498)

Vulnerability from cvelistv5 – Published: 2026-01-07 17:09 – Updated: 2026-01-07 18:20
VLAI
Title
NULL Pointer Dereference in iccDEV XML Calculator Parser
Summary
iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of ICC color management profiles. Prior to version 2.3.1.2, iccDEV is vulnerable to NULL pointer dereference via the XML calculator parser. This issue has been patched in version 2.3.1.2.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-07 18:15 UTC
CWE
  • CWE-20 - Improper Input Validation
  • CWE-252 - Unchecked Return Value
  • CWE-476 - NULL Pointer Dereference
  • CWE-690 - Unchecked Return Value to NULL Pointer Dereference
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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              "cweId": "CWE-690",
              "description": "CWE-690: Unchecked Return Value to NULL Pointer Dereference",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-07T17:09:20.269Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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      "references": [
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          "name": "https://github.com/InternationalColorConsortium/iccDEV/security/advisories/GHSA-6822-qvxq-m736",
          "tags": [
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          ],
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        },
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          "tags": [
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          "url": "https://github.com/InternationalColorConsortium/iccDEV/issues/375"
        },
        {
          "name": "https://github.com/InternationalColorConsortium/iccDEV/pull/404",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/InternationalColorConsortium/iccDEV/pull/404"
        },
        {
          "name": "https://github.com/InternationalColorConsortium/iccDEV/commit/75f124f40ba45491211cb4b67f0e05b7c7d59553",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/InternationalColorConsortium/iccDEV/commit/75f124f40ba45491211cb4b67f0e05b7c7d59553"
        },
        {
          "name": "https://github.com/InternationalColorConsortium/iccDEV/commit/bdfa31940726aaabb0a6f19194d9062ba0598959",
          "tags": [
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          ],
          "url": "https://github.com/InternationalColorConsortium/iccDEV/commit/bdfa31940726aaabb0a6f19194d9062ba0598959"
        }
      ],
      "source": {
        "advisory": "GHSA-6822-qvxq-m736",
        "discovery": "UNKNOWN"
      },
      "title": "NULL Pointer Dereference in iccDEV XML Calculator Parser"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-21498",
    "datePublished": "2026-01-07T17:09:20.269Z",
    "dateReserved": "2025-12-29T14:34:16.007Z",
    "dateUpdated": "2026-01-07T18:20:17.575Z",
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CVE-2026-21497 (GCVE-0-2026-21497)

Vulnerability from cvelistv5 – Published: 2026-01-07 17:08 – Updated: 2026-01-07 18:19
VLAI
Title
NULL Pointer Dereference in iccDEV Unknown Tag Parser
Summary
iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of ICC color management profiles. Prior to version 2.3.1.2, iccDEV is vulnerable to NULL pointer dereference via an unknown tag parser. This issue has been patched in version 2.3.1.2.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-07 18:17 UTC
CWE
  • CWE-20 - Improper Input Validation
  • CWE-252 - Unchecked Return Value
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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                "id": "CVE-2026-21497",
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-07T18:17:14.422095Z",
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        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-07T18:19:19.900Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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        "title": "CISA ADP Vulnrichment"
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    ],
    "cna": {
      "affected": [
        {
          "product": "iccDEV",
          "vendor": "InternationalColorConsortium",
          "versions": [
            {
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              "version": "\u003c 2.3.1.2"
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        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
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      "source": {
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        "discovery": "UNKNOWN"
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      "title": "NULL Pointer Dereference in iccDEV Unknown Tag Parser"
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    "datePublished": "2026-01-07T17:08:59.853Z",
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Mitigation MIT-56
Implementation

For any pointers that could have been modified or provided from a function that can return NULL, check the pointer for NULL before use. When working with a multithreaded or otherwise asynchronous environment, ensure that proper locking APIs are used to lock before the check, and unlock when it has finished [REF-1484].

Mitigation
Requirements

Select a programming language that is not susceptible to these issues.

Mitigation
Implementation

Check the results of all functions that return a value and verify that the value is non-null before acting upon it.

Mitigation
Architecture and Design

Identify all variables and data stores that receive information from external sources, and apply input validation to make sure that they are only initialized to expected values.

Mitigation
Implementation

Explicitly initialize all variables and other data stores, either during declaration or just before the first usage.

No CAPEC attack patterns related to this CWE.

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