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CWE-476

5,434 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 (5,434)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Matroska
3Libebml2
MkcleanMkvalidator
May 13, 2026
Nov 10, 2017
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
The EBML_FindNextElement function in ebmlmain.c in libebml2 through 2012-08-26 allows remote attackers to cause a denial of service (Null pointer dereference and application crash) via a crafted mkv file.
1Matroska
3Libebml2
MkcleanMkvalidator
May 13, 2026
Nov 10, 2017
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
The EBML_BufferToID function in ebmlelement.c in libebml2 through 2012-08-26 allows remote attackers to cause a denial of service (Null pointer dereference and application crash) via a crafted mkv file.
1Matroska
1Mkvalidator
May 13, 2026
Nov 10, 2017
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
The Node_GetData function in corec/corec/node/node.c in mkvalidator 0.5.1 allows remote attackers to cause a denial of service (Null pointer dereference and application crash) via a crafted mkv file.
1Swftools
1Swftools
May 13, 2026
Nov 9, 2017
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
The swf_DefineLosslessBitsTagToImage function in lib/modules/swfbits.c in SWFTools 0.9.2 mishandles an uncompress failure, which allows remote attackers to cause a denial of service (NULL pointer dereference and applicat...Show more
The swf_DefineLosslessBitsTagToImage function in lib/modules/swfbits.c in SWFTools 0.9.2 mishandles an uncompress failure, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) because of extractDefinitions in lib/readers/swf.c and fill_line_bitmap in lib/devices/render.c, as demonstrated by swfrender.Show less
1Linux
1Linux Kernel
May 13, 2026
Nov 7, 2017
N/A· v4
6.6 MEDIUM· v3
7.2 HIGH· v2
drivers/net/usb/asix_devices.c in the Linux kernel through 4.13.11 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted USB d...Show more
drivers/net/usb/asix_devices.c in the Linux kernel through 4.13.11 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted USB device.Show less
1Linux
1Linux Kernel
May 13, 2026
Nov 7, 2017
N/A· v4
6.6 MEDIUM· v3
7.2 HIGH· v2
drivers/media/usb/dvb-usb/dib0700_devices.c in the Linux kernel through 4.13.11 allows local users to cause a denial of service (BUG and system crash) or possibly have unspecified other impact via a crafted USB device.
1Cesanta
1Mongoose
May 13, 2026
Nov 7, 2017
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
An exploitable NULL pointer dereference vulnerability exists in the MQTT packet parsing functionality of Cesanta Mongoose 6.8. An MQTT SUBSCRIBE packet can cause a NULL pointer dereference leading to server crash and den...Show more
An exploitable NULL pointer dereference vulnerability exists in the MQTT packet parsing functionality of Cesanta Mongoose 6.8. An MQTT SUBSCRIBE packet can cause a NULL pointer dereference leading to server crash and denial of service. An attacker needs to send a specially crafted MQTT packet over the network to trigger this vulnerability.Show less
1Advantech
1Webaccess
May 13, 2026
Nov 6, 2017
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
An Untrusted Pointer Dereference issue was discovered in Advantech WebAccess versions prior to V8.2_20170817. A remote attacker is able to execute code to dereference a pointer within the program causing the application...Show more
An Untrusted Pointer Dereference issue was discovered in Advantech WebAccess versions prior to V8.2_20170817. A remote attacker is able to execute code to dereference a pointer within the program causing the application to become unavailable.Show less
1Linux
1Linux Kernel
May 13, 2026
Nov 6, 2017
N/A· v4
5.5 MEDIUM· v3
4.9 MEDIUM· v2
The kvm_vm_ioctl_check_extension function in arch/powerpc/kvm/powerpc.c in the Linux kernel before 4.13.11 allows local users to cause a denial of service (NULL pointer dereference and system crash) via a KVM_CHECK_EXTEN...Show more
The kvm_vm_ioctl_check_extension function in arch/powerpc/kvm/powerpc.c in the Linux kernel before 4.13.11 allows local users to cause a denial of service (NULL pointer dereference and system crash) via a KVM_CHECK_EXTENSION KVM_CAP_PPC_HTM ioctl call to /dev/kvm.Show less
1Graphicsmagick
1Graphicsmagick
May 13, 2026
Nov 5, 2017
N/A· v4
8.8 HIGH· v3
6.8 MEDIUM· v2
The ReadWPGImage function in coders/wpg.c in GraphicsMagick 1.3.26 does not properly validate colormapped images, which allows remote attackers to cause a denial of service (ImportIndexQuantumType invalid write and appli...Show more
The ReadWPGImage function in coders/wpg.c in GraphicsMagick 1.3.26 does not properly validate colormapped images, which allows remote attackers to cause a denial of service (ImportIndexQuantumType invalid write and application crash) or possibly have unspecified other impact via a malformed WPG image.Show less
1Linux
1Linux Kernel
May 13, 2026
Nov 4, 2017
N/A· v4
6.6 MEDIUM· v3
7.2 HIGH· v2
The imon_probe function in drivers/media/rc/imon.c in the Linux kernel through 4.13.11 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact...Show more
The imon_probe function in drivers/media/rc/imon.c in the Linux kernel through 4.13.11 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted USB device.Show less
1Linux
1Linux Kernel
May 13, 2026
Nov 4, 2017
N/A· v4
6.6 MEDIUM· v3
7.2 HIGH· v2
The cx231xx_usb_probe function in drivers/media/usb/cx231xx/cx231xx-cards.c in the Linux kernel through 4.13.11 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have...Show more
The cx231xx_usb_probe function in drivers/media/usb/cx231xx/cx231xx-cards.c in the Linux kernel through 4.13.11 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted USB device.Show less
3Canonical
DebianLinux
3Debian Linux
Linux KernelUbuntu Linux
May 13, 2026
Nov 4, 2017
N/A· v4
6.6 MEDIUM· v3
7.2 HIGH· v2
The get_endpoints function in drivers/usb/misc/usbtest.c in the Linux kernel through 4.13.11 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other...Show more
The get_endpoints function in drivers/usb/misc/usbtest.c in the Linux kernel through 4.13.11 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted USB device.Show less
1Radare
1Radare2
May 13, 2026
Nov 1, 2017
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
In radare 2.0.1, a pointer wraparound vulnerability exists in store_versioninfo_gnu_verdef() in libr/bin/format/elf/elf.c.
1Watchdogdevelopment
2Anti Malware
Online Security Pro
May 13, 2026
Oct 30, 2017
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
In Watchdog Anti-Malware 2.74.186.150 and Online Security Pro 2.74.186.150, the zam32.sys driver contains a NULL pointer dereference vulnerability that gets triggered when sending an operation to ioctl 0x80002010. This i...Show more
In Watchdog Anti-Malware 2.74.186.150 and Online Security Pro 2.74.186.150, the zam32.sys driver contains a NULL pointer dereference vulnerability that gets triggered when sending an operation to ioctl 0x80002010. This is due to the input buffer being NULL or the input buffer size being 0 as they are not validated.Show less
1Watchdogdevelopment
2Anti Malware
Online Security Pro
May 13, 2026
Oct 30, 2017
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
In Watchdog Anti-Malware 2.74.186.150 and Online Security Pro 2.74.186.150, the zam32.sys driver contains a NULL pointer dereference vulnerability that gets triggered when sending an operation to ioctl 0x80002054. This i...Show more
In Watchdog Anti-Malware 2.74.186.150 and Online Security Pro 2.74.186.150, the zam32.sys driver contains a NULL pointer dereference vulnerability that gets triggered when sending an operation to ioctl 0x80002054. This is due to the input buffer being NULL or the input buffer size being 0 as they are not validated.Show less
1Qemu
1Qemu
May 13, 2026
Oct 30, 2017
N/A· v4
6.0 MEDIUM· v3
2.1 LOW· v2
The MSI-X MMIO support in hw/pci/msix.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (NULL pointer dereference and QEMU process crash) by leveraging failure to define t...Show more
The MSI-X MMIO support in hw/pci/msix.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (NULL pointer dereference and QEMU process crash) by leveraging failure to define the .write method.Show less
2Bchunk Project
Debian
2Bchunk
Debian Linux
May 13, 2026
Oct 28, 2017
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
bchunk (related to BinChunker) 1.2.0 and 1.2.1 is vulnerable to an "Access violation near NULL on destination operand" and crash when processing a malformed CUE (.cue) file.
1Gnu
1Binutils
May 13, 2026
Oct 27, 2017
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
dwarf2.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.29, mishandles NULL files in a .debug_line file table, which allows remote attackers to cause a denial of service (NULL...Show more
dwarf2.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.29, mishandles NULL files in a .debug_line file table, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted ELF file, related to concat_filename. NOTE: this issue is caused by an incomplete fix for CVE-2017-15023.Show less
2Debian
Graphicsmagick
2Debian Linux
Graphicsmagick
May 13, 2026
Oct 27, 2017
N/A· v4
8.8 HIGH· v3
6.8 MEDIUM· v2
In ReadOneJNGImage in coders/png.c in GraphicsMagick 1.3.26, a Null Pointer Dereference occurs while transferring JPEG scanlines, related to a PixelPacket pointer.