CWE-843

Access of Resource Using Incompatible Type ('Type Confusion')

The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

CVE-2026-35417 (GCVE-0-2026-35417)

Vulnerability from cvelistv5 – Published: 2026-05-12 16:58 – Updated: 2026-06-02 23:16
VLAI
Title
Windows Win32k Elevation of Privilege Vulnerability
Summary
Use after free in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
Assigner
References
Impacted products
Vendor Product Version
Microsoft Windows 10 Version 1809 Affected: 10.0.17763.0 , < 10.0.17763.8755 (custom)
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Microsoft Windows 10 Version 21H2 Affected: 10.0.19044.0 , < 10.0.19044.7291 (custom)
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Microsoft Windows 10 Version 22H2 Affected: 10.0.19045.0 , < 10.0.19045.7291 (custom)
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Microsoft Windows 11 version 23H2 Affected: 10.0.22631.0 , < 10.0.22631.7079 (custom)
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Microsoft Windows 11 Version 23H2 Affected: 10.0.22631.0 , < 10.0.22631.7079 (custom)
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Microsoft Windows 11 Version 24H2 Affected: 10.0.26100.0 , < 10.0.26100.8457 (custom)
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Microsoft Windows 11 Version 25H2 Affected: 10.0.26200.0 , < 10.0.26200.8457 (custom)
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Microsoft Windows 11 version 26H1 Affected: 10.0.28000.0 , < 10.0.28000.2113 (custom)
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Microsoft Windows Server 2019 Affected: 10.0.17763.0 , < 10.0.17763.8755 (custom)
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Microsoft Windows Server 2019 (Server Core installation) Affected: 10.0.17763.0 , < 10.0.17763.8755 (custom)
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Microsoft Windows Server 2022 Affected: 10.0.20348.0 , < 10.0.20348.5139 (custom)
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Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) Affected: 10.0.25398.0 , < 10.0.25398.2330 (custom)
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Microsoft Windows Server 2025 Affected: 10.0.26100.0 , < 10.0.26100.32860 (custom)
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Microsoft Windows Server 2025 (Server Core installation) Affected: 10.0.26100.0 , < 10.0.26100.32860 (custom)
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Date Public
2026-05-12 14:00
Show details on NVD website
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CVE-2026-35541 (GCVE-0-2026-35541)

Vulnerability from cvelistv5 – Published: 2026-04-03 03:50 – Updated: 2026-04-03 12:52
VLAI
Summary
An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. Incorrect password comparison in the password plugin could lead to type confusion that allows a password change without knowing the old password.
Severity
4.2 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
Assigner
References
Impacted products
Vendor Product Version
Roundcube Webmail Affected: 0 , < 1.5.14 (semver)
Affected: 1.6.0 , < 1.6.14 (semver)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-39956 (GCVE-0-2026-39956)

Vulnerability from cvelistv5 – Published: 2026-04-13 22:10 – Updated: 2026-04-14 16:28
VLAI
Title
jq: Missing runtime type checks for _strindices lead to crash and limited memory disclosure
Summary
jq is a command-line JSON processor. In commits after 69785bf77f86e2ea1b4a20ca86775916889e91c9, the _strindices builtin in jq's src/builtin.c passes its arguments directly to jv_string_indexes() without verifying they are strings, and jv_string_indexes() in src/jv.c relies solely on assert() checks that are stripped in release builds compiled with -DNDEBUG. This allows an attacker to crash jq trivially with input like _strindices(0), and by crafting a numeric value whose IEEE-754 bit pattern maps to a chosen pointer, achieve a controlled pointer dereference and limited memory read/probe primitive. Any deployment that evaluates untrusted jq filters against a release build is vulnerable. This issue has been patched in commit fdf8ef0f0810e3d365cdd5160de43db46f57ed03.
Severity
6.1 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-125 - Out-of-bounds Read
  • CWE-476 - NULL Pointer Dereference
  • CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
Assigner
References
Impacted products
Vendor Product Version
jqlang jq Affected: >= 69785bf77f86e2ea1b4a20ca86775916889e91c9, < fdf8ef0f0810e3d365cdd5160de43db46f57ed03
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-40364 (GCVE-0-2026-40364)

Vulnerability from cvelistv5 – Published: 2026-05-12 16:58 – Updated: 2026-06-02 23:16
VLAI
Title
Microsoft Word Remote Code Execution Vulnerability
Summary
Access of resource using incompatible type ('type confusion') in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Severity
8.4 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
  • CWE-908 - Use of Uninitialized Resource
  • CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
Microsoft Microsoft 365 Apps for Enterprise Affected: 16.0.1 , < https://aka.ms/OfficeSecurityReleases (custom)
Create a notification for this product.
Microsoft Microsoft Office 2019 Affected: 19.0.0 , < https://aka.ms/OfficeSecurityReleases (custom)
Create a notification for this product.
Microsoft Microsoft Office LTSC 2021 Affected: 16.0.1 , < https://aka.ms/OfficeSecurityReleases (custom)
Create a notification for this product.
Microsoft Microsoft Office LTSC 2024 Affected: 16.0.0 , < https://aka.ms/OfficeSecurityReleases (custom)
Create a notification for this product.
Microsoft Microsoft Office LTSC for Mac 2021 Affected: 16.0.1 , < 16.109.26051019 (custom)
Create a notification for this product.
Microsoft Microsoft Office LTSC for Mac 2024 Affected: 16.0.0 , < 16.109.26051019 (custom)
Create a notification for this product.
Microsoft Microsoft Word 2016 Affected: 16.0.1 , < 16.0.5552.1000 (custom)
Create a notification for this product.
Date Public
2026-05-12 14:00
Show details on NVD website
To clipboard 

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CVE-2026-40446 (GCVE-0-2026-40446)

Vulnerability from cvelistv5 – Published: 2026-04-13 04:56 – Updated: 2026-04-13 18:06
VLAI
Summary
Access of resource using incompatible type ('type confusion') vulnerability in Samsung Open Source Escargot allows Pointer Manipulation.This issue affects Escargot: 97e8115ab1110bc502b4b5e4a0c689a71520d335.
Severity
6.9 (Medium)
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-843 - Access of resource using incompatible type ('type confusion')
Assigner
References
Impacted products
Vendor Product Version
Samsung Open Source Escargot Affected: 97e8115ab1110bc502b4b5e4a0c689a71520d335
Create a notification for this product.
Credits
Sebastián Alba Vives / @Sebasteuo
Show details on NVD website
To clipboard 

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CVE-2026-40683 (GCVE-0-2026-40683)

Vulnerability from cvelistv5 – Published: 2026-04-14 20:05 – Updated: 2026-04-14 20:14
VLAI
Summary
In OpenStack Keystone before 28.0.1, the LDAP identity backend does not convert the user enabled attribute to a boolean when the user_enabled_invert configuration option is False (the default). The _ldap_res_to_model method in the UserApi class only performed string-to-boolean conversion when user_enabled_invert was True. When False, the raw string value from LDAP (e.g., "FALSE") was used directly. Since non-empty strings are truthy in Python, users marked as disabled in LDAP were treated as enabled by Keystone, allowing them to authenticate and perform actions. All deployments using the LDAP identity backend without user_enabled_invert=True or user_enabled_emulation are affected.
Severity
7.7 (High)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
Assigner
References
Impacted products
Vendor Product Version
OpenStack Keystone Affected: 8.0.0 , < 25.0.1 (semver)
Affected: 26.0.0 , < 26.1.1 (semver)
Affected: 27.0.0 , < 27.0.1 (semver)
Affected: 28.0.0 , < 28.0.1 (semver)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-43862 (GCVE-0-2026-43862)

Vulnerability from cvelistv5 – Published: 2026-05-04 06:00 – Updated: 2026-05-04 18:21
VLAI
Summary
In mutt before 2.3.2, the imap_auth_gss security level is mishandled.
Severity
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
Assigner
References
Impacted products
Vendor Product Version
mutt mutt Affected: 0 , < 2.3.2 (semver)
Create a notification for this product.
Show details on NVD website
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CVE-2026-44325 (GCVE-0-2026-44325)

Vulnerability from cvelistv5 – Published: 2026-05-27 15:43 – Updated: 2026-05-27 17:50
VLAI
Title
free5GC: NRF POST /oauth2/token structured-form parser type-confusion panic family (Reflect.Set on incompatible types)
Summary
free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NRF root SBI endpoint POST /oauth2/token contains a parser-level type-confusion bug family. The handler in NFs/nrf/internal/sbi/api_accesstoken.go reflects over models.NrfAccessTokenAccessTokenReq, special-cases only plain string and NrfNfManagementNfType fields, and treats every other field as if it were a single models.PlmnId. The parsed *models.PlmnId is then assigned with reflect.Value.Set() to whichever field name the attacker put in the form body, which panics whenever the destination field's real type is incompatible (slice, different struct, primitive). Gin recovery converts each panic into HTTP 500, but the endpoint remains remotely panicable from a single unauthenticated form-encoded request and is repeatedly triggerable. This vulnerability is fixed in 4.2.2.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-20 - Improper Input Validation
  • CWE-755 - Improper Handling of Exceptional Conditions
  • CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
Assigner
References
Impacted products
Vendor Product Version
free5gc free5gc Affected: < 4.2.2
Create a notification for this product.
Show details on NVD website
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CVE-2026-44640 (GCVE-0-2026-44640)

Vulnerability from cvelistv5 – Published: 2026-05-29 19:28 – Updated: 2026-05-29 21:36
VLAI
Title
NanoMQ: QUIC Dialer Close Type Confusion
Summary
NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. Prior to 0.24.14, aio->prov_data is stored as nni_quic_conn* during dialing, but read as ex_quic_conn* during dialer close. This type confusion causes invalid object interpretation and leads to close-path hang/crash behavior. This vulnerability is fixed in 0.24.14.
Severity
4.5 (Medium)
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
Assigner
References
Impacted products
Vendor Product Version
nanomq nanomq Affected: < 0.24.14
Create a notification for this product.
Show details on NVD website
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CVE-2026-44728 (GCVE-0-2026-44728)

Vulnerability from cvelistv5 – Published: 2026-05-26 17:48 – Updated: 2026-05-28 03:55
VLAI
Title
Improper Control of Generation of Code when compiling specifically crafted malicious code with @babel/plugin-transform-modules-systemjs
Summary
Babel is a compiler for writing next generation JavaScript. From 7.12.0 to before 7.29.4 and 8.0.0-alpha.13, using Babel to compile code that was specifically crafted by an attacker can cause Babel to generate output code that executes arbitrary code. This vulnerability is fixed in 7.29.4 and 8.0.0-alpha.13.
Severity
8.2 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-94 - Improper Control of Generation of Code ('Code Injection')
  • CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
Assigner
References
Impacted products
Vendor Product Version
babel babel Affected: >= 7.12.0, < 7.29.4
Affected: >= 8.0.0-alpha.0, < 8.0.0-alpha.13
Create a notification for this product.
@babel plugin-transform-modules-systemjs Affected: >= 7.12.0, < 7.29.4
Affected: >= 8.0.0-alpha.0, < 8.0.0-alpha.13
Create a notification for this product.
Show details on NVD website
To clipboard 

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          "value": "Babel is a compiler for writing next generation JavaScript. From 7.12.0 to before 7.29.4 and 8.0.0-alpha.13, using Babel to compile code that was specifically crafted by an attacker can cause Babel to generate output code that executes arbitrary code. This vulnerability is fixed in 7.29.4 and 8.0.0-alpha.13."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-94",
              "description": "CWE-94: Improper Control of Generation of Code (\u0027Code Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-843",
              "description": "CWE-843: Access of Resource Using Incompatible Type (\u0027Type Confusion\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-26T17:48:57.603Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/babel/babel/security/advisories/GHSA-fv7c-fp4j-7gwp",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/babel/babel/security/advisories/GHSA-fv7c-fp4j-7gwp"
        }
      ],
      "source": {
        "advisory": "GHSA-fv7c-fp4j-7gwp",
        "discovery": "UNKNOWN"
      },
      "title": "Improper Control of Generation of Code when compiling specifically crafted malicious code with @babel/plugin-transform-modules-systemjs"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-44728",
    "datePublished": "2026-05-26T17:48:57.603Z",
    "dateReserved": "2026-05-07T18:04:17.309Z",
    "dateUpdated": "2026-05-28T03:55:38.825Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

No mitigation information available for this CWE.

No CAPEC attack patterns related to this CWE.

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