RealNetworks Helix Universal Server 9.0.1 and 9.0.2 allows remote attackers to cause a denial of service (crash) via malformed requests that trigger a null dereference, as demonstrated using (1) GET_PARAMETER or (2) DESCRIBE requests.

The dissect_attribute_value_pairs function in packet-radius.c for Ethereal 0.8.13 to 0.10.2 allows remote attackers to cause a denial of service (crash) via a malformed RADIUS packet that triggers a null dereference.

The Negotiate Security Software Provider (SSP) interface in Windows 2000, Windows XP, and Windows Server 2003, allows remote attackers to cause a denial of service (crash from null dereference) or execute arbitrary code via a crafted SPNEGO NegTokenInit request during authentication protocol selection.

The do_change_cipher_spec function in OpenSSL 0.9.6c to 0.9.6k, and 0.9.7a to 0.9.7c, allows remote attackers to cause a denial of service (crash) via a crafted SSL/TLS handshake that triggers a null dereference.

mah-jong before 1.6.2 allows remote attackers to cause a denial of service (server crash) via a missing argument, which triggers a null pointer dereference.

A vulnerability was found in D-Link DI-8400 16.07.26A1. It has been classified as problematic. This affects an unknown part of the file usb_paswd.asp of the component jhttpd. The manipulation of the argument share_enable leads to null pointer dereference. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

ACRN before 2.5 has a hw/pci/virtio/virtio.c vq_endchains NULL Pointer Dereference.

Nullptr dereference in paddle.crop in PaddlePaddle before 2.6.0. This flaw can cause a runtime crash and a denial of service.

Possible null pointer access due to improper validation of system information message to be processed in Snapdragon Industrial IOT, Snapdragon Mobile

ec_verify in kdc/kdc_preauth_ec.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.18.4 and 1.19.x before 1.19.2 allows remote attackers to cause a NULL pointer dereference and daemon crash. This occurs because a return value is not properly managed in a certain situation.

NULL Pointer Dereference in µD3TN via non-singleton destination Endpoint Identifier allows remote attacker to reliably cause DoS

Null pointer dereference vulnerability exists in multiple vendors MFPs and printers which implement Debut web server 1.2 or 1.3. Processing a specially crafted request may lead an affected product to a denial-of-service (DoS) condition. As for the affected products/models/versions, see the detailed information provided by each vendor.

A null pointer dereference in Fortinet FortiOS version 7.2.0 through 7.2.4, 7.0.0 through 7.0.11, 6.4.0 through 6.4.12, 6.2.0 through 6.2.14, 6.0.0 through 6.0.16, FortiProxy 7.2.0 through 7.2.3, 7.0.0 through 7.0.10, 2.0.0 through 2.0.12, 1.2.0 through 1.2.13, 1.1.0 through 1.1.6, 1.0.0 through 1.0.7 allows attacker to denial of service via specially crafted HTTP requests.

A vulnerability was found in openldap. This security flaw causes a null pointer dereference in ber_memalloc_x() function.

An issue was discovered in tls_verify_crl in ProFTPD before 1.3.6. Direct dereference of a NULL pointer (a variable initialized to NULL) leads to a crash when validating the certificate of a client connecting to the server in a TLS client/server mutual-authentication setup.

An issue found in TCPprep v.4.4.3 allows a remote attacker to cause a denial of service via the macinstring function.

The Q.931 dissector in Ethereal before 0.10.0, and Tethereal, allows remote attackers to cause a denial of service (crash) via a malformed Q.931, which triggers a null dereference.

An issue found in TCPReplay v.4.4.3 allows a remote attacker to cause a denial of service via the read_hexstring function at the utils.c:309 endpoint.

A message unchecked NULL return value vulnerability in Trend Micro Apex Central could allow a remote attacker to create a denial-of-service condition on affected installations. Please note: authentication is not required in order to exploit this vulnerability..

A vulnerability has been identified in SIPROTEC 5 6MD85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 6MD86 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 6MD89 (CP300) (All versions >= V7.80 < V9.64), SIPROTEC 5 6MU85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7KE85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7SA82 (CP100) (All versions < V8.90), SIPROTEC 5 7SA82 (CP150) (All versions < V9.40), SIPROTEC 5 7SA86 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7SA87 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7SD82 (CP100) (All versions < V8.90), SIPROTEC 5 7SD82 (CP150) (All versions < V9.40), SIPROTEC 5 7SD86 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7SD87 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7SJ81 (CP100) (All versions < V8.89), SIPROTEC 5 7SJ81 (CP150) (All versions < V9.40), SIPROTEC 5 7SJ82 (CP100) (All versions < V8.89), SIPROTEC 5 7SJ82 (CP150) (All versions < V9.40), SIPROTEC 5 7SJ85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7SJ86 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7SK82 (CP100) (All versions < V8.89), SIPROTEC 5 7SK82 (CP150) (All versions < V9.40), SIPROTEC 5 7SK85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7SL82 (CP100) (All versions < V8.90), SIPROTEC 5 7SL82 (CP150) (All versions < V9.40), SIPROTEC 5 7SL86 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7SL87 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7SS85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7ST85 (CP300) (All versions >= V7.80 < V9.64), SIPROTEC 5 7ST86 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7SX82 (CP150) (All versions < V9.40), SIPROTEC 5 7SX85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7UM85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7UT82 (CP100) (All versions < V8.90), SIPROTEC 5 7UT82 (CP150) (All versions < V9.40), SIPROTEC 5 7UT85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7UT86 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7UT87 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7VE85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7VK87 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7VU85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 Communication Module ETH-BA-2EL (Rev.1) (All versions < V9.40 installed on CP150 and CP300 devices), SIPROTEC 5 Communication Module ETH-BA-2EL (Rev.1) (All versions < V8.89 installed on CP100 devices), SIPROTEC 5 Communication Module ETH-BB-2FO (Rev. 1) (All versions < V9.40 installed on CP150 and CP300 devices), SIPROTEC 5 Communication Module ETH-BB-2FO (Rev. 1) (All versions < V8.89 installed on CP100 devices), SIPROTEC 5 Communication Module ETH-BD-2FO (All versions < V9.40), SIPROTEC 5 Compact 7SX800 (CP050) (All versions < V9.40). Affected devices lack proper validation of http request parameters of the hosted web service. An unauthenticated remote attacker could send specially crafted packets that could cause denial of service condition of the target device.

A Null Pointer Dereference vulnerability exists in the TON Virtual Machine (TVM) within the TON Blockchain before v2025.06. The issue is located in the execution logic of the INMSGPARAM instruction, where the program fails to validate if a specific pointer is null before accessing it. By sending a malicious transaction or smart contract, an attacker can trigger this null pointer dereference, causing the validator node process to crash (segmentation fault). This results in a Denial of Service (DoS) affecting the availability of the entire blockchain network.

When a BIG-IP LTM Client SSL profile is configured on a virtual server with SSL Forward Proxy enabled and Anonymous Diffie-Hellman (ADH) ciphers enabled, undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

mod_auth_openidc is an authentication and authorization module for the Apache 2.x HTTP server that implements the OpenID Connect Relying Party functionality. In versions 2.0.0 through 2.4.13.1, when `OIDCStripCookies` is set and a crafted cookie supplied, a NULL pointer dereference would occur, resulting in a segmentation fault. This could be used in a Denial-of-Service attack and thus presents an availability risk. Version 2.4.13.2 contains a patch for this issue. As a workaround, avoid using `OIDCStripCookies`.

An issue found in TCPprep v.4.4.3 allows a remote attacker to cause a denial of service via the parse_list function at the list.c:81 endpoint.

An issue was discovered in Envoy 1.12.0. Upon receipt of a malformed HTTP request without a Host header, it sends an internally generated "Invalid request" response. This internally generated response is dispatched through the configured encoder filter chain before being sent to the client. An encoder filter that invokes route manager APIs that access a request's Host header causes a NULL pointer dereference, resulting in abnormal termination of the Envoy process.

High traffic environments may result in NULL Pointer Dereference vulnerability in Silicon Labs's Ember ZNet SDK before v7.4.0, causing a system crash.

SkyStream EMR5000 1.16 through 1.18 does not drop packets or disable the Ethernet interface when the buffers are full, which allows remote attackers to cause a denial of service (null pointer exception and kernel panic) via a large number of packets.

libyang from v2.0.164 to v2.1.30 was discovered to contain a NULL pointer dereference via the function lysp_stmt_validate_value at lys_parse_mem.c.

Issue summary: Processing a malformed PKCS#12 file can trigger a NULL pointer dereference in the PKCS12_item_decrypt_d2i_ex() function. Impact summary: A NULL pointer dereference can trigger a crash which leads to Denial of Service for an application processing PKCS#12 files. The PKCS12_item_decrypt_d2i_ex() function does not check whether the oct parameter is NULL before dereferencing it. When called from PKCS12_unpack_p7encdata() with a malformed PKCS#12 file, this parameter can be NULL, causing a crash. The vulnerability is limited to Denial of Service and cannot be escalated to achieve code execution or memory disclosure. Exploiting this issue requires an attacker to provide a malformed PKCS#12 file to an application that processes it. For that reason the issue was assessed as Low severity according to our Security Policy. The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this issue, as the PKCS#12 implementation is outside the OpenSSL FIPS module boundary. OpenSSL 3.6, 3.5, 3.4, 3.3, 3.0, 1.1.1 and 1.0.2 are vulnerable to this issue.

A vulnerability in the web server of Cisco Integrated Management Controller (IMC) could allow an unauthenticated, remote attacker to cause the web server process to crash, causing a denial of service (DoS) condition on an affected system. The vulnerability is due to insufficient validation of user-supplied input on the web interface. An attacker could exploit this vulnerability by submitting a crafted HTTP request to certain endpoints of the affected software. A successful exploit could allow an attacker to cause the web server to crash. Physical access to the device may be required for a restart.

Hydra through 0.1.8 has a NULL pointer dereference and daemon crash when processing POST requests that lack a Content-Length header. read.c, request.c, and util.c contribute to this. The process_header_end() function calls boa_atoi(), which ultimately calls atoi() on a NULL pointer.

A bug in Micrium OS Network HTTP Server permits an invalid pointer dereference during header processing - potentially allowing a device crash and Denial of Service.

A vulnerability classified as problematic was found in OpenCV wechat_qrcode Module up to 4.7.0. Affected by this vulnerability is the function DecodedBitStreamParser::decodeByteSegment of the file qrcode/decoder/decoded_bit_stream_parser.cpp. The manipulation leads to null pointer dereference. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-228547.

TensorFlow is an open source platform for machine learning. Versions prior to 2.12.0 and 2.11.1 have a null point error in QuantizedMatMulWithBiasAndDequantize with MKL enabled. A fix is included in TensorFlow version 2.12.0 and version 2.11.1.

TensorFlow is an open source platform for machine learning. Prior to versions 2.12.0 and 2.11.1, when the parameter `summarize` of `tf.raw_ops.Print` is zero, the new method `SummarizeArray<bool>` will reference to a nullptr, leading to a seg fault. A fix is included in TensorFlow version 2.12 and version 2.11.1.

TensorFlow is an open source machine learning platform. Versions prior to 2.12.0 and 2.11.1 have a null pointer error in RandomShuffle with XLA enabled. A fix is included in TensorFlow 2.12.0 and 2.11.1.

OpenDMARC 1.4.1 and 1.4.1.1 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a multi-value From header field.

TensorFlow is an open source platform for machine learning. Prior to versions 2.12.0 and 2.11.1, when `ctx->step_containter()` is a null ptr, the Lookup function will be executed with a null pointer. A fix is included in TensorFlow 2.12.0 and 2.11.1.

A vulnerability in the DHCP version 4 (DHCPv4) server feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to trigger a crash of the dhcpd process, resulting in a denial of service (DoS) condition. This vulnerability exists because certain DHCPv4 messages are improperly validated when they are processed by an affected device. An attacker could exploit this vulnerability by sending a malformed DHCPv4 message to an affected device. A successful exploit could allow the attacker to cause a NULL pointer dereference, resulting in a crash of the dhcpd process. While the dhcpd process is restarting, which may take up to approximately two minutes, DHCPv4 server services are unavailable on the affected device. This could temporarily prevent network access to clients that join the network during that time period. Note: Only the dhcpd process crashes and eventually restarts automatically. The router does not reload.

In multiple locations, there is a possible null dereference due to a missing null check. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.

An issue was discovered in src/http/httpLib.c in EmbedThis Appweb Community Edition 8.2.1, allows attackers to cause a denial of service via the stream paramter to the parseUri function.

Null pointer dereference in SuiteLink server while processing command 0x07

Null pointer dereference in SuiteLink server while processing command 0x0b

An issue was discovered in SchedMD Slurm 22.05.x, 23.02.x, and 23.11.x. A NULL pointer dereference leads to denial of service. The fixed versions are 22.05.11, 23.02.7, and 23.11.1.

Null pointer dereference in SuiteLink server while processing commands 0x03/0x10

Type Confusion in 802154 ACK Frames Handling. Zephyr versions >= v2.4.0 contain NULL Pointer Dereference (CWE-476). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-27r3-rxch-2hm7

cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Calling `load_pem_pkcs7_certificates` or `load_der_pkcs7_certificates` could lead to a NULL-pointer dereference and segfault. Exploitation of this vulnerability poses a serious risk of Denial of Service (DoS) for any application attempting to deserialize a PKCS7 blob/certificate. The consequences extend to potential disruptions in system availability and stability. This vulnerability has been patched in version 41.0.6.