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.

6305 vulnerabilities reference this CWE, most recent first.

CVE-2026-10656 (GCVE-0-2026-10656)

Vulnerability from cvelistv5 – Published: 2026-07-05 22:23 – Updated: 2026-07-14 18:38
VLAI
Title
NULL-pointer dereference DoS in MAX32 USB device controller transfer-completion handlers
Summary
The MAX32xxx USB device controller driver (drivers/usb/udc/udc_max32.c, compatible adi_max32_usbhs) dereferenced an endpoint buffer in its OUT and IN transfer-completion handlers without checking it for NULL. udc_event_xfer_out_done() called net_buf_add(buf, ep_request->actlen) immediately after buf = udc_buf_get(ep_cfg), where udc_buf_get() returns NULL when the endpoint FIFO is empty. A transfer-completion event is queued from interrupt context and processed asynchronously by the driver thread; between queuing and processing, the endpoint FIFO can be drained by host-controlled control flow — in particular udc_setup_received() drains the EP0 OUT/IN FIFOs whenever a new SETUP packet arrives, and dequeue/disable/purge paths drain it likewise. A USB host that aborts an in-flight EP0 control transfer with a new SETUP packet (legal USB behavior) can therefore cause a stale XFER_OUT_DONE event to be processed against an empty FIFO, producing net_buf_add(NULL, ...), a near-NULL pointer dereference that faults and crashes the device. No authentication is required; the attacker is the USB host the device is connected to (physical bus access). Impact is denial of service (device crash). The defect was introduced when the MAX32 UDC driver was added and shipped in Zephyr v4.4.0. The fix adds NULL-buffer checks that return early with UDC_EVT_ERROR/-ENOBUFS in both the OUT-done and IN-done handlers.
Severity
4.6 (Medium)
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
zephyrproject zephyr Affected: 4.2.0 , < 4.5.0 (semver)
Create a notification for this product.
Show details on NVD website
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CVE-2026-10648 (GCVE-0-2026-10648)

Vulnerability from cvelistv5 – Published: 2026-06-29 22:51 – Updated: 2026-07-14 18:38
VLAI
Title
NULL-pointer dereference in MCUmgr serial/console SMP transport on buffer-pool exhaustion
Summary
mcumgr_serial_process_frag() in subsys/mgmt/mcumgr/transport/src/serial_util.c calls net_buf_reset() on the result of smp_packet_alloc() before checking it for NULL. smp_packet_alloc() uses net_buf_alloc(K_NO_WAIT) against the shared MCUmgr packet pool (CONFIG_MCUMGR_TRANSPORT_NETBUF_COUNT, default 4), which returns NULL when the pool is exhausted. In default builds the __ASSERT_NO_MSG in net_buf_reset is a no-op, so net_buf_simple_reset writes through the NULL pointer (buf->len = 0; buf->data = buf->__buf), causing a fault/crash. The fragment data reaches this code from attacker-controlled bytes on the MCUmgr serial/UART/shell-console transports (smp_uart.c, smp_raw_uart.c, smp_shell.c), and a fresh buffer is allocated at the start of essentially every new packet. An attacker on the serial/console link can flood the transport to drive the 4-entry buffer pool to exhaustion and induce the NULL dereference, crashing the device (denial of service). The defect was introduced after the original MCUmgr rework and shipped in Zephyr v4.4.0. The fix moves the NULL check ahead of net_buf_reset.
Severity
6.2 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
zephyrproject zephyr Affected: 4.4.0 , < 4.5.0 (semver)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-10593 (GCVE-0-2026-10593)

Vulnerability from cvelistv5 – Published: 2026-06-28 04:28 – Updated: 2026-07-14 18:38
VLAI
Title
Remotely triggerable NULL-pointer dereference in Bluetooth LE Audio BAP unicast client QoS-state handling
Summary
The Zephyr Bluetooth LE Audio Basic Audio Profile (BAP) unicast client mishandles peer-supplied ASE state notifications. In unicast_client_ep_qos_state() (subsys/bluetooth/audio/bap_unicast_client.c), the handler writes attacker-controlled QoS fields (interval, framing, phy, sdu, rtn, latency, pd) through the stream->qos pointer with only a stream != NULL guard. stream->qos is NULL for any stream that has been codec-configured via bt_bap_stream_config() but not yet added to a unicast group (it is set only by unicast_group_add_stream()). A malicious or buggy remote ASCS server, to which the local device is connected as a BAP unicast client, can send a GATT notification announcing the ASE has entered the QoS Configured state while the local endpoint is still in the Codec Configured state — a transition the dispatcher explicitly permits — during that window, causing a write through a NULL pointer and a crash (denial of service). The data written is itself remote-controlled. The defect shipped in v4.3.0 and v4.4.0 (and earlier). The fix re-points all BAP QoS storage to the always-valid embedded ep->qos struct, eliminating the NULL dereference.
Severity
6.5 (Medium)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
zephyrproject zephyr Affected: 4.3.0 , < 4.5.0 (semver)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-10298 (GCVE-0-2026-10298)

Vulnerability from cvelistv5 – Published: 2026-06-01 22:30 – Updated: 2026-06-02 15:45
VLAI
Title
ggml-org whisper.cpp ggml.c whisper_model_load null pointer dereference
Summary
A security flaw has been discovered in ggml-org whisper.cpp up to 1.8.2. This vulnerability affects the function whisper_model_load of the file ggml/src/ggml.c. The manipulation results in null pointer dereference. Attacking locally is a requirement. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
Severity
4.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
3.3 (Low)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
3.3 (Low)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://vuldb.com/vuln/367591 vdb-entrytechnical-description
https://vuldb.com/vuln/367591/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-10298 third-party-advisory
https://vuldb.com/submit/826910 third-party-advisory
https://github.com/ggml-org/whisper.cpp/issues/3807 exploitissue-tracking
https://github.com/ggml-org/whisper.cpp/ product
Impacted products
Vendor Product Version
ggml-org whisper.cpp Affected: 1.8.0
Affected: 1.8.1
Affected: 1.8.2
    cpe:2.3:a:ggml-org:whisper.cpp:*:*:*:*:*:*:*:*
 Create a notification for this product.
Credits
m00dy (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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CVE-2026-10199 (GCVE-0-2026-10199)

Vulnerability from cvelistv5 – Published: 2026-05-31 22:30 – Updated: 2026-06-01 15:24 X_Open Source
VLAI
Title
Assimp glTF2Asset.h LazyDict null pointer dereference
Summary
A vulnerability has been found in Assimp up to 6.0.4. Affected by this issue is the function glTF2::LazyDict in the library glTF2Asset.h. Such manipulation of the argument operator[] leads to null pointer dereference. The attack must be carried out locally. The exploit has been disclosed to the public and may be used. The name of the patch is d24b85319bd70c65883a2b96613e07e23fb95981. It is best practice to apply a patch to resolve this issue.
Severity
4.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
3.3 (Low)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
3.3 (Low)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a Assimp Affected: 6.0.0
Affected: 6.0.1
Affected: 6.0.2
Affected: 6.0.3
Affected: 6.0.4
    cpe:2.3:a:assimp:assimp:*:*:*:*:*:*:*:*
Credits
TYGLS (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-10198 (GCVE-0-2026-10198)

Vulnerability from cvelistv5 – Published: 2026-05-31 22:15 – Updated: 2026-06-01 14:59
VLAI
Title
Assimp glTFImporter glTFImporter.cpp ImportMeshes null pointer dereference
Summary
A flaw has been found in Assimp up to 6.0.4. Affected by this vulnerability is the function Assimp::glTFImporter::ImportMeshes of the file glTFImporter.cpp of the component glTFImporter. This manipulation causes null pointer dereference. The attack is restricted to local execution. The exploit has been published and may be used. The project tagged the reported issue as bug.
Severity
4.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
3.3 (Low)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
3.3 (Low)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a Assimp Affected: 6.0.0
Affected: 6.0.1
Affected: 6.0.2
Affected: 6.0.3
Affected: 6.0.4
    cpe:2.3:a:assimp:assimp:*:*:*:*:*:*:*:*
Credits
TYGLS (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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CVE-2026-10197 (GCVE-0-2026-10197)

Vulnerability from cvelistv5 – Published: 2026-05-31 22:00 – Updated: 2026-06-01 13:25
VLAI
Title
Assimp TF File glTF2Importer.cpp ImportEmbeddedTextures null pointer dereference
Summary
A vulnerability was detected in Assimp up to 6.0.4. Affected is the function glTF2Importer::ImportEmbeddedTextures in the library code/AssetLib/glTF2/glTF2Importer.cpp of the component TF File Handler. The manipulation results in null pointer dereference. The attack is only possible with local access. The exploit is now public and may be used. It is advisable to implement a patch to correct this issue. The pull request to fix this issue awaits acceptance.
Severity
4.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
3.3 (Low)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
3.3 (Low)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a Assimp Affected: 6.0.0
Affected: 6.0.1
Affected: 6.0.2
Affected: 6.0.3
Affected: 6.0.4
    cpe:2.3:a:assimp:assimp:*:*:*:*:*:*:*:*
Credits
TYGLS (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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CVE-2026-9759 (GCVE-0-2026-9759)

Vulnerability from cvelistv5 – Published: 2026-05-27 18:33 – Updated: 2026-05-27 19:36
VLAI
Title
NULL Pointer Dereference in Wireshark
Summary
ROHC protocol dissector crash in Wireshark 4.6.0 to 4.6.5 and 4.4.0 to 4.4.15 allows denial of service
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 (v2.0.3)
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
Wireshark Foundation Wireshark Affected: 4.6.0 , < 4.6.6 (semver)
Affected: 4.4.0 , < 4.4.16 (semver)
Create a notification for this product.
Credits
Arjun Basnet @ Securin Labs
Show details on NVD website
To clipboard 

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CVE-2026-9752 (GCVE-0-2026-9752)

Vulnerability from cvelistv5 – Published: 2026-06-09 22:27 – Updated: 2026-06-10 18:30
VLAI
Title
GeometryCollection with strict-winding polygon causes server crash during 2dsphere index key generation
Summary
An authorized user could trigger a server crash by running a query with a 2dsphere index on a field that stores a GeoJSON GeometryCollection containing a Polygon with a strict-winding CRS. Strict-winding polygons are intentionally unsupported for indexing, but the guard that rejects them does not inspect members of a GeometryCollection, allowing the unsafe path to be reached which ends with an ensuing null-pointer dereference.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-476 - NULL pointer dereference
Assigner
References
Impacted products
Vendor Product Version
MongoDB MongoDB Server Affected: 8.3.0 , < 8.3.3 (semver)
Affected: 8.2.0 , < 8.2.10 (semver)
Affected: 8.0.0 , < 8.0.24 (semver)
Affected: 7.0.0 , < 7.0.35 (semver)
Create a notification for this product.
Credits
muhammaddaffa
Show details on NVD website
To clipboard 

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CVE-2026-9743 (GCVE-0-2026-9743)

Vulnerability from cvelistv5 – Published: 2026-06-09 21:59 – Updated: 2026-06-10 13:50
VLAI
Title
Aggregation sub-pipeline null dereference may allow DoS via crafted getMore
Summary
In MongoDB Server 8.0, an aggregation stage can leave its _subPipeline field null during processing of certain pipelines. If a getMore is subsequently issued on the same cursor, the server may dereference this null sub-pipeline when reattaching to the operation context, accessing an invalid address and crashing the process. This issue allows an authenticated user who can run aggregation pipelines to cause a denial of service by issuing a specially crafted aggregation followed by getMore on affected versions.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-476 - NULL pointer dereference
Assigner
References
Impacted products
Vendor Product Version
MongoDB MongoDB server Affected: 8.0.0 , < 8.0.24 (semver)
Create a notification for this product.
Show details on NVD website
To clipboard 

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            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
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            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
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          ]
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
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            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-476",
              "description": "CWE-476 NULL pointer dereference",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-09T21:59:34.669Z",
        "orgId": "a39b4221-9bd0-4244-95fc-f3e2e07f1deb",
        "shortName": "mongodb"
      },
      "references": [
        {
          "url": "https://jira.mongodb.org/browse/SERVER-123688"
        }
      ],
      "source": {
        "discovery": "INTERNAL"
      },
      "title": "Aggregation sub-pipeline null dereference may allow DoS via crafted getMore",
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "a39b4221-9bd0-4244-95fc-f3e2e07f1deb",
    "assignerShortName": "mongodb",
    "cveId": "CVE-2026-9743",
    "datePublished": "2026-06-09T21:59:34.669Z",
    "dateReserved": "2026-05-27T17:34:45.641Z",
    "dateUpdated": "2026-06-10T13:50:48.290Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}
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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