← Back
CWE-476

5,447 CVEs • Abstraction: Base • Likelihood of Exploit: Medium

NULL Pointer Dereference

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

JSON object

Loading...

CVEs (5,447)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Webassembly
1Binaryen
Jun 17, 2026
Aug 22, 2023
N/A· v4
6.5 MEDIUM· v3
N/A· v2
A NULL pointer dereference was discovered in SExpressionWasmBuilder::makeBlock in wasm/wasm-s-parser.c in Binaryen 1.38.26. A crafted wasm input can cause a segmentation fault, leading to denial-of-service, as demonstrat...Show more
A NULL pointer dereference was discovered in SExpressionWasmBuilder::makeBlock in wasm/wasm-s-parser.c in Binaryen 1.38.26. A crafted wasm input can cause a segmentation fault, leading to denial-of-service, as demonstrated by wasm-as.Show less
2Linux
Redhat
2Enterprise Linux
Linux Kernel
Jun 17, 2026
Aug 21, 2023
N/A· v4
5.5 MEDIUM· v3
N/A· v2
A NULL pointer dereference flaw was found in vmxnet3_rq_cleanup in drivers/net/vmxnet3/vmxnet3_drv.c in the networking sub-component in vmxnet3 in the Linux Kernel. This issue may allow a local attacker with normal user...Show more
A NULL pointer dereference flaw was found in vmxnet3_rq_cleanup in drivers/net/vmxnet3/vmxnet3_drv.c in the networking sub-component in vmxnet3 in the Linux Kernel. This issue may allow a local attacker with normal user privilege to cause a denial of service due to a missing sanity check during cleanup.Show less
1Dlink
1Dir 880l A1 Firmware
Jun 17, 2026
Aug 18, 2023
N/A· v4
7.5 HIGH· v3
N/A· v2
D-Link DIR-880 A1_FW107WWb08 was discovered to contain a NULL pointer dereference in the function FUN_00010824.
1Linux
1Linux Kernel
Jun 17, 2026
Aug 16, 2023
N/A· v4
5.5 MEDIUM· v3
N/A· v2
A NULL pointer dereference flaw was found in dbFree in fs/jfs/jfs_dmap.c in the journaling file system (JFS) in the Linux Kernel. This issue may allow a local attacker to crash the system due to a missing sanity check.
1Qemu
1Qemu
Jun 17, 2026
Aug 14, 2023
N/A· v4
5.5 MEDIUM· v3
N/A· v2
QEMU through 8.0.4 accesses a NULL pointer in nvme_directive_receive in hw/nvme/ctrl.c because there is no check for whether an endurance group is configured before checking whether Flexible Data Placement is enabled.
1Huawei
2Emui
Harmonyos
Jun 17, 2026
Aug 13, 2023
N/A· v4
7.5 HIGH· v3
N/A· v2
Input parameter verification vulnerability in the communication system. Successful exploitation of this vulnerability may affect availability.
1Vim
1Vim
Jun 17, 2026
Aug 11, 2023
N/A· v4
5.5 MEDIUM· v3
N/A· v2
vim 8.2.2348 is affected by null pointer dereference, allows local attackers to cause a denial of service (DoS) via the ex_buffer_all method.
1Ffmpeg
1Ffmpeg
Jun 17, 2026
Aug 11, 2023
N/A· v4
7.5 HIGH· v3
N/A· v2
An issue was discovered in decode_frame in libavcodec/tiff.c in FFmpeg version 4.3, allows remote attackers to cause a denial of service (DoS).
1Freedesktop
1Poppler
Jun 17, 2026
Aug 11, 2023
N/A· v4
5.5 MEDIUM· v3
N/A· v2
An issue was discovered in freedesktop poppler version 20.12.1, allows remote attackers to cause a denial of service (DoS) via crafted .pdf file to FoFiType1C::convertToType1 function.
1Jerryscript
1Jerryscript
Jun 17, 2026
Aug 11, 2023
N/A· v4
5.5 MEDIUM· v3
N/A· v2
An issue was discovered in ecma-helpers.c in jerryscript version 2.3.0, allows local attackers to cause a denial of service (DoS) (Null Pointer Dereference).
1Siemens
2Parasolid
Teamcenter Visualization
Jun 17, 2026
Aug 8, 2023
2.0 LOW· v4
7.8 HIGH· v3
N/A· v2
A vulnerability has been identified in Parasolid V34.1 (All versions < V34.1.258), Parasolid V35.0 (All versions < V35.0.254), Parasolid V35.1 (All versions < V35.1.171), Teamcenter Visualization V14.1 (All versions < V1...Show more
A vulnerability has been identified in Parasolid V34.1 (All versions < V34.1.258), Parasolid V35.0 (All versions < V35.0.254), Parasolid V35.1 (All versions < V35.1.171), Teamcenter Visualization V14.1 (All versions < V14.1.0.11), Teamcenter Visualization V14.2 (All versions < V14.2.0.6), Teamcenter Visualization V14.3 (All versions < V14.3.0.3). The affected applications contain null pointer dereference while parsing specially crafted X_T files. This could allow an attacker to execute code in the context of the current process.Show less
1Yasm Project
1Yasm
Jun 17, 2026
Jul 26, 2023
N/A· v4
5.5 MEDIUM· v3
N/A· v2
Yasm v1.3.0.78 was found prone to NULL Pointer Dereference in /libyasm/intnum.c and /elf/elf.c, which allows the attacker to cause a denial of service via a crafted file.
1Paddlepaddle
1Paddlepaddle
Jun 17, 2026
Jul 26, 2023
N/A· v4
7.5 HIGH· v3
N/A· v2
Null pointer dereference in paddle.flip in PaddlePaddle before 2.5.0. This resulted in a runtime crash and denial of service.
4Debian
FedoraprojectLinux+1 more
6Debian Linux
Enterprise LinuxEnterprise Linux For Real Time+3 more
Jun 17, 2026
Jul 25, 2023
N/A· v4
4.4 MEDIUM· v3
N/A· v2
A flaw was found in the Linux kernel’s IP framework for transforming packets (XFRM subsystem). This issue may allow a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer in xfrm_update_ae_...Show more
A flaw was found in the Linux kernel’s IP framework for transforming packets (XFRM subsystem). This issue may allow a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer in xfrm_update_ae_params(), leading to a possible kernel crash and denial of service.Show less
2Linux
Netapp
6H300s Firmware
H410c FirmwareH410s Firmware+3 more
Jun 17, 2026
Jul 24, 2023
N/A· v4
7.5 HIGH· v3
N/A· v2
A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the handling of SMB2_LOGOFF commands. The issue results from the lack of proper validation of a point...Show more
A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the handling of SMB2_LOGOFF commands. The issue results from the lack of proper validation of a pointer prior to accessing it. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.Show less
2Linux
Netapp
6H300s
H410cH410s+3 more
Jun 17, 2026
Jul 24, 2023
N/A· v4
7.5 HIGH· v3
N/A· v2
A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the handling of SMB2_TREE_CONNECT and SMB2_QUERY_INFO commands. The issue results from the lack of pr...Show more
A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the handling of SMB2_TREE_CONNECT and SMB2_QUERY_INFO commands. The issue results from the lack of proper validation of a pointer prior to accessing it. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.Show less
1Libssh
1Libssh
Jun 17, 2026
Jul 21, 2023
N/A· v4
6.5 MEDIUM· v3
N/A· v2
A missing allocation check in sftp server processing read requests may cause a NULL dereference on low-memory conditions. The malicious client can request up to 4GB SFTP reads, causing allocation of up to 4GB buffers, wh...Show more
A missing allocation check in sftp server processing read requests may cause a NULL dereference on low-memory conditions. The malicious client can request up to 4GB SFTP reads, causing allocation of up to 4GB buffers, which was not being checked for failure. This will likely crash the authenticated user's sftp server connection (if implemented as forking as recommended). For thread-based servers, this might also cause DoS for legitimate users. Given this code is not in any released versions, no security releases have been issued.Show less
1Ncia
1Advisor Network
Jun 17, 2026
Jul 18, 2023
N/A· v4
5.5 MEDIUM· v3
N/A· v2
In NATO Communications and Information Agency anet (aka Advisor Network) through 3.3.0, an attacker can provide a crafted JSON file to sanitizeJson and cause an exception. This is related to the U+FFFD Unicode replacemen...Show more
In NATO Communications and Information Agency anet (aka Advisor Network) through 3.3.0, an attacker can provide a crafted JSON file to sanitizeJson and cause an exception. This is related to the U+FFFD Unicode replacement character. A for loop does not consider that a data structure is being modified during loop execution.Show less
1Asn1c Project
1Asn1c
Jun 17, 2026
Jul 18, 2023
N/A· v4
5.5 MEDIUM· v3
N/A· v2
An issue was discovered in asn1c through v0.9.28. A NULL pointer dereference exists in the function _default_error_logger() located in asn1fix.c. It allows an attacker to cause Denial of Service.
1Mozilla
1Firefox
Jun 17, 2026
Jul 12, 2023
N/A· v4
6.5 MEDIUM· v3
N/A· v2
The session restore helper crashed whenever there was no parameter sent to the message handler. This vulnerability affects Firefox for iOS < 115.