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CWE-476

5,437 CVEs • Abstraction: Base • Likelihood of Exploit: Medium

NULL Pointer Dereference

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

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CVEs (5,437)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Teler Project
1Teler
Jun 17, 2026
Nov 6, 2020
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
In teler before version 0.0.1, if you run teler inside a Docker container and encounter `errors.Exit` function, it will cause denial-of-service (`SIGSEGV`) because it doesn't get process ID and process group ID of teler...Show more
In teler before version 0.0.1, if you run teler inside a Docker container and encounter `errors.Exit` function, it will cause denial-of-service (`SIGSEGV`) because it doesn't get process ID and process group ID of teler properly to kills. The issue is patched in teler 0.0.1 and 0.0.1-dev5.1.Show less
2Fedoraproject
Linuxfoundation
2Fedora
Nats Server
Jun 17, 2026
Nov 6, 2020
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
The JWT library in NATS nats-server before 2.1.9 allows a denial of service (a nil dereference in Go code).
1Mitsubishielectric
1Coreos
Jun 17, 2026
Nov 6, 2020
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
NULL pointer dereferences vulnerability in TCP/IP function included in the firmware of GT14 Model of GOT 1000 series (GT1455-QTBDE CoreOS version "05.65.00.BD" and earlier, GT1450-QMBDE CoreOS version "05.65.00.BD" and e...Show more
NULL pointer dereferences vulnerability in TCP/IP function included in the firmware of GT14 Model of GOT 1000 series (GT1455-QTBDE CoreOS version "05.65.00.BD" and earlier, GT1450-QMBDE CoreOS version "05.65.00.BD" and earlier, GT1450-QLBDE CoreOS version "05.65.00.BD" and earlier, GT1455HS-QTBDE CoreOS version "05.65.00.BD" and earlier, and GT1450HS-QMBDE CoreOS version "05.65.00.BD" and earlier) allows a remote unauthenticated attacker to stop the network functions of the products via a specially crafted packet.Show less
1Mitsubishielectric
5Melsec Iq Rd81dl96 Firmware
Melsec Iq Rd81mes96n FirmwareMelsec Iq Rd81opc96 Firmware+2 more
Jun 17, 2026
Nov 2, 2020
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
NULL pointer dereferences vulnerability in TCP/IP function included in the firmware of MELSEC iQ-R series (RJ71EIP91 EtherNet/IP Network Interface Module First 2 digits of serial number are '02' or before, RJ71PN92 PROFI...Show more
NULL pointer dereferences vulnerability in TCP/IP function included in the firmware of MELSEC iQ-R series (RJ71EIP91 EtherNet/IP Network Interface Module First 2 digits of serial number are '02' or before, RJ71PN92 PROFINET IO Controller Module First 2 digits of serial number are '01' or before, RD81DL96 High Speed Data Logger Module First 2 digits of serial number are '08' or before, RD81MES96N MES Interface Module First 2 digits of serial number are '04' or before, and RD81OPC96 OPC UA Server Module First 2 digits of serial number are '04' or before) allows a remote unauthenticated attacker to stop the network functions of the products via a specially crafted packet.Show less
4Debian
FedoraprojectOpensuse+1 more
4Debian Linux
FedoraLeap+1 more
Jun 17, 2026
Oct 29, 2020
N/A· v4
5.5 MEDIUM· v3
2.1 LOW· v2
A null pointer dereference flaw was found in samba's Winbind service in versions before 4.11.15, before 4.12.9 and before 4.13.1. A local user could use this flaw to crash the winbind service causing denial of service.
1Apple
1Airport Base Station Firmware
Jun 17, 2026
Oct 27, 2020
N/A· v4
7.5 HIGH· v3
7.8 HIGH· v2
A null pointer dereference was addressed with improved input validation. This issue is fixed in AirPort Base Station Firmware Update 7.8.1, AirPort Base Station Firmware Update 7.9.1. A remote attacker may be able to cau...Show more
A null pointer dereference was addressed with improved input validation. This issue is fixed in AirPort Base Station Firmware Update 7.8.1, AirPort Base Station Firmware Update 7.9.1. A remote attacker may be able to cause a system denial of service.Show less
1Apple
1Airport Base Station Firmware
Jun 17, 2026
Oct 27, 2020
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
A null pointer dereference was addressed with improved input validation. This issue is fixed in AirPort Base Station Firmware Update 7.8.1, AirPort Base Station Firmware Update 7.9.1. A remote attacker may be able to cau...Show more
A null pointer dereference was addressed with improved input validation. This issue is fixed in AirPort Base Station Firmware Update 7.8.1, AirPort Base Station Firmware Update 7.9.1. A remote attacker may be able to cause arbitrary code execution.Show less
3Debian
FedoraprojectLinux
3Debian Linux
FedoraLinux Kernel
Jun 17, 2026
Oct 22, 2020
N/A· v4
4.7 MEDIUM· v3
4.7 MEDIUM· v2
An issue was discovered in the Linux kernel through 5.9.1, as used with Xen through 4.14.x. drivers/xen/events/events_base.c allows event-channel removal during the event-handling loop (a race condition). This can cause...Show more
An issue was discovered in the Linux kernel through 5.9.1, as used with Xen through 4.14.x. drivers/xen/events/events_base.c allows event-channel removal during the event-handling loop (a race condition). This can cause a use-after-free or NULL pointer dereference, as demonstrated by a dom0 crash via events for an in-reconfiguration paravirtualized device, aka CID-073d0552ead5.Show less
2Mozilla
Siemens
9Network Security Services
Ruggedcom Rox Mx5000 FirmwareRuggedcom Rox Rx1400 Firmware+6 more
Nov 21, 2024
Oct 22, 2020
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
In Network Security Services (NSS) before 3.36.7 and before 3.41.1, a malformed signature can cause a crash due to a null dereference, resulting in a Denial of Service.
1Adobe
1Indesign
Jun 17, 2026
Oct 21, 2020
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
Adobe InDesign version 15.1.2 (and earlier) is affected by a NULL pointer dereference bug that occurs when handling a malformed .indd file. The impact is limited to causing a denial-of-service of the client application....Show more
Adobe InDesign version 15.1.2 (and earlier) is affected by a NULL pointer dereference bug that occurs when handling a malformed .indd file. The impact is limited to causing a denial-of-service of the client application. User interaction is required to exploit this issue.Show less
1Juniper
1Junos
Jun 17, 2026
Oct 16, 2020
N/A· v4
8.8 HIGH· v3
5.8 MEDIUM· v2
The DHCPv6 Relay-Agent service, part of the Juniper Enhanced jdhcpd daemon shipped with Juniper Networks Junos OS has an Improper Input Validation vulnerability which will result in a Denial of Service (DoS) condition wh...Show more
The DHCPv6 Relay-Agent service, part of the Juniper Enhanced jdhcpd daemon shipped with Juniper Networks Junos OS has an Improper Input Validation vulnerability which will result in a Denial of Service (DoS) condition when a DHCPv6 client sends a specific DHPCv6 message allowing an attacker to potentially perform a Remote Code Execution (RCE) attack on the target device. Continuous receipt of the specific DHCPv6 client message will result in an extended Denial of Service (DoS) condition. If adjacent devices are also configured to relay DHCP packets, and are not affected by this issue and simply transparently forward unprocessed client DHCPv6 messages, then the attack vector can be a Network-based attack, instead of an Adjacent-device attack. No other DHCP services are affected. Receipt of the packet without configuration of the DHCPv6 Relay-Agent service, will not result in exploitability of this issue. This issue affects Juniper Networks Junos OS: 12.3 versions prior to 12.3R12-S15; 12.3X48 versions prior to 12.3X48-D95; 14.1X53 versions prior to 14.1X53-D53; 15.1 versions prior to 15.1R7-S6; 15.1X49 versions prior to 15.1X49-D200; 15.1X53 versions prior to 15.1X53-D593; 16.1 versions prior to 16.1R7-S7; 16.2 versions prior to 16.2R2-S11; 17.1 versions prior to 17.1R2-S11, 17.1R3-S2; 17.2 versions prior to 17.2R3-S3; 17.2X75 versions prior to 17.2X75-D44; 17.3 versions prior to 17.3R3-S7; 17.4 versions prior to 17.4R2-S9, 17.4R3; 18.1 versions prior to 18.1R3-S9; 18.2 versions prior to 18.2R2-S6, 18.2R3-S2; 18.2X75 versions prior to 18.2X75-D12, 18.2X75-D33, 18.2X75-D435, 18.2X75-D60; 18.3 versions prior to 18.3R1-S7, 18.3R2-S3, 18.3R3-S1; 18.4 versions prior to 18.4R1-S5, 18.4R2-S3, 18.4R3; 19.1 versions prior to 19.1R1-S4, 19.1R2; 19.2 versions prior to 19.2R1-S3, 19.2R2; 19.3 versions prior to 19.3R2.Show less
1Qualcomm
1Qualcomm Mobile Access Point
Jun 17, 2026
Oct 15, 2020
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
The QCMAP_Web_CLIENT binary in the Qualcomm QCMAP software suite prior to versions released in October 2020 does not validate the return value of a strstr() or strchr() call in the Tokenizer() function. An attacker who i...Show more
The QCMAP_Web_CLIENT binary in the Qualcomm QCMAP software suite prior to versions released in October 2020 does not validate the return value of a strstr() or strchr() call in the Tokenizer() function. An attacker who invokes the web interface with a crafted URL can crash the process, causing denial of service. This version of QCMAP is used in many kinds of networking devices, primarily mobile hotspots and LTE routers.Show less
1Adobe
1Flash Player
Jun 17, 2026
Oct 14, 2020
N/A· v4
8.8 HIGH· v3
9.3 HIGH· v2
Adobe Flash Player version 32.0.0.433 (and earlier) are affected by an exploitable NULL pointer dereference vulnerability that could result in a crash and arbitrary code execution. Exploitation of this issue requires an...Show more
Adobe Flash Player version 32.0.0.433 (and earlier) are affected by an exploitable NULL pointer dereference vulnerability that could result in a crash and arbitrary code execution. Exploitation of this issue requires an attacker to insert malicious strings in an HTTP response that is by default delivered over TLS/SSL.Show less
4Fedoraproject
OpensuseOracle+1 more
4Fedora
LeapWireshark+1 more
Jun 17, 2026
Oct 6, 2020
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
In Wireshark 3.2.0 to 3.2.6 and 3.0.0 to 3.0.13, the BLIP protocol dissector has a NULL pointer dereference because a buffer was sized for compressed (not uncompressed) messages. This was addressed in epan/dissectors/pac...Show more
In Wireshark 3.2.0 to 3.2.6 and 3.0.0 to 3.0.13, the BLIP protocol dissector has a NULL pointer dereference because a buffer was sized for compressed (not uncompressed) messages. This was addressed in epan/dissectors/packet-blip.c by allowing reasonable compression ratios and rejecting ZIP bombs.Show less
2Qemu
Redhat
3Enterprise Linux
Openstack PlatformQemu
Jun 17, 2026
Oct 6, 2020
N/A· v4
3.2 LOW· v3
2.1 LOW· v2
hw/ide/pci.c in QEMU before 5.1.1 can trigger a NULL pointer dereference because it lacks a pointer check before an ide_cancel_dma_sync call.
1Qemu
1Qemu
Jun 17, 2026
Oct 6, 2020
N/A· v4
3.2 LOW· v3
2.1 LOW· v2
pci_change_irq_level in hw/pci/pci.c in QEMU before 5.1.1 has a NULL pointer dereference because pci_get_bus() might not return a valid pointer.
1Nvidia
1Virtual Gpu Manager
Jun 17, 2026
Oct 2, 2020
N/A· v4
5.5 MEDIUM· v3
2.1 LOW· v2
NVIDIA Virtual GPU Manager contains a vulnerability in the vGPU plugin, in which it can dereference a NULL pointer, which may lead to denial of service. This affects vGPU version 8.x (prior to 8.5), version 10.x (prior t...Show more
NVIDIA Virtual GPU Manager contains a vulnerability in the vGPU plugin, in which it can dereference a NULL pointer, which may lead to denial of service. This affects vGPU version 8.x (prior to 8.5), version 10.x (prior to 10.4) and version 11.0.Show less
1Qemu
1Qemu
Jun 17, 2026
Oct 2, 2020
N/A· v4
3.2 LOW· v3
2.1 LOW· v2
fdctrl_write_data in hw/block/fdc.c in QEMU 5.0.0 has a NULL pointer dereference via a NULL block pointer for the current drive.
1Foxitsoftware
2Foxit Reader
Phantompdf
Jun 17, 2026
Oct 2, 2020
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
An issue was discovered in Foxit Reader and PhantomPDF before 10.1. There is a NULL pointer dereference via a crafted PDF document.
2Google
Opensuse
2Leap
Tensorflow
Jun 17, 2026
Sep 25, 2020
N/A· v4
5.9 MEDIUM· v3
4.3 MEDIUM· v2
In tensorflow-lite before versions 1.15.4, 2.0.3, 2.1.2, 2.2.1 and 2.3.1, a crafted TFLite model can force a node to have as input a tensor backed by a `nullptr` buffer. This can be achieved by changing a buffer index in...Show more
In tensorflow-lite before versions 1.15.4, 2.0.3, 2.1.2, 2.2.1 and 2.3.1, a crafted TFLite model can force a node to have as input a tensor backed by a `nullptr` buffer. This can be achieved by changing a buffer index in the flatbuffer serialization to convert a read-only tensor to a read-write one. The runtime assumes that these buffers are written to before a possible read, hence they are initialized with `nullptr`. However, by changing the buffer index for a tensor and implicitly converting that tensor to be a read-write one, as there is nothing in the model that writes to it, we get a null pointer dereference. The issue is patched in commit 0b5662bc, and is released in TensorFlow versions 1.15.4, 2.0.3, 2.1.2, 2.2.1, or 2.3.1.Show less