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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
1Freedesktop
1Poppler
May 13, 2026
Sep 17, 2017
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
In Poppler 0.59.0, a NULL Pointer Dereference exists in the XRef::parseEntry() function in XRef.cc via a crafted PDF document.
1Imagemagick
1Imagemagick
May 13, 2026
Sep 17, 2017
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
DrawGetStrokeDashArray in wand/drawing-wand.c in ImageMagick 7.0.7-1 mishandles certain NULL arrays, which allows attackers to perform Denial of Service (NULL pointer dereference and application crash in AcquireQuantumMe...Show more
DrawGetStrokeDashArray in wand/drawing-wand.c in ImageMagick 7.0.7-1 mishandles certain NULL arrays, which allows attackers to perform Denial of Service (NULL pointer dereference and application crash in AcquireQuantumMemory within MagickCore/memory.c) by providing a crafted Image File as input.Show less
2Debian
Graphicsmagick
2Debian Linux
Graphicsmagick
May 13, 2026
Sep 17, 2017
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
ReadPNMImage in coders/pnm.c in GraphicsMagick 1.3.26 does not ensure the correct number of colors for the XV 332 format, leading to a NULL Pointer Dereference.
1Vmware
4Esxi
FusionWorkstation+1 more
May 13, 2026
Sep 15, 2017
N/A· v4
5.5 MEDIUM· v3
2.1 LOW· v2
VMware ESXi 6.5 without patch ESXi650-201707101-SG, ESXi 6.0 without patch ESXi600-201706101-SG, ESXi 5.5 without patch ESXi550-201709101-SG, Workstation (12.x before 12.5.3), Fusion (8.x before 8.5.4) contain a NULL poi...Show more
VMware ESXi 6.5 without patch ESXi650-201707101-SG, ESXi 6.0 without patch ESXi600-201706101-SG, ESXi 5.5 without patch ESXi550-201709101-SG, Workstation (12.x before 12.5.3), Fusion (8.x before 8.5.4) contain a NULL pointer dereference vulnerability. This issue occurs when handling guest RPC requests. Successful exploitation of this issue may allow attackers with normal user privileges to crash their VMs.Show less
1Linux
1Linux Kernel
May 13, 2026
Sep 15, 2017
N/A· v4
5.5 MEDIUM· v3
4.9 MEDIUM· v2
The XFS_IS_REALTIME_INODE macro in fs/xfs/xfs_linux.h in the Linux kernel before 4.13.2 does not verify that a filesystem has a realtime device, which allows local users to cause a denial of service (NULL pointer derefer...Show more
The XFS_IS_REALTIME_INODE macro in fs/xfs/xfs_linux.h in the Linux kernel before 4.13.2 does not verify that a filesystem has a realtime device, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) via vectors related to setting an RHINHERIT flag on a directory.Show less
1Mp3gain
1Mp3gain
May 13, 2026
Sep 13, 2017
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
A NULL pointer dereference was discovered in sync_buffer in interface.c in mpglibDBL, as used in MP3Gain version 1.5.2. The vulnerability causes a segmentation fault and application crash, which leads to remote denial of...Show more
A NULL pointer dereference was discovered in sync_buffer in interface.c in mpglibDBL, as used in MP3Gain version 1.5.2. The vulnerability causes a segmentation fault and application crash, which leads to remote denial of service.Show less
1Imagemagick
1Imagemagick
May 13, 2026
Sep 12, 2017
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
In ImageMagick 7.0.7-1 Q16, the PersistPixelCache function in magick/cache.c mishandles the pixel cache nexus, which allows remote attackers to cause a denial of service (NULL pointer dereference in the function GetVirtu...Show more
In ImageMagick 7.0.7-1 Q16, the PersistPixelCache function in magick/cache.c mishandles the pixel cache nexus, which allows remote attackers to cause a denial of service (NULL pointer dereference in the function GetVirtualPixels in MagickCore/cache.c) via a crafted file.Show less
1Xen
1Xen
May 13, 2026
Sep 12, 2017
N/A· v4
6.5 MEDIUM· v3
4.9 MEDIUM· v2
An issue was discovered in Xen 4.5.x through 4.9.x. The function `__gnttab_cache_flush` handles GNTTABOP_cache_flush grant table operations. It checks to see if the calling domain is the owner of the page that is to be o...Show more
An issue was discovered in Xen 4.5.x through 4.9.x. The function `__gnttab_cache_flush` handles GNTTABOP_cache_flush grant table operations. It checks to see if the calling domain is the owner of the page that is to be operated on. If it is not, the owner's grant table is checked to see if a grant mapping to the calling domain exists for the page in question. However, the function does not check to see if the owning domain actually has a grant table or not. Some special domains, such as `DOMID_XEN`, `DOMID_IO` and `DOMID_COW` are created without grant tables. Hence, if __gnttab_cache_flush operates on a page owned by these special domains, it will attempt to dereference a NULL pointer in the domain struct.Show less
2Canonical
Nasm
2Netwide Assembler
Ubuntu Linux
May 13, 2026
Sep 9, 2017
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
In Netwide Assembler (NASM) 2.14rc0, there is an illegal address access in the function paste_tokens() in preproc.c, aka a NULL pointer dereference. It will lead to remote denial of service.
1Ffmpeg
1Ffmpeg
May 13, 2026
Sep 9, 2017
N/A· v4
8.8 HIGH· v3
6.8 MEDIUM· v2
The av_color_primaries_name function in libavutil/pixdesc.c in FFmpeg 3.3.3 may return a NULL pointer depending on a value contained in a file, but callers do not anticipate this, as demonstrated by the avcodec_string fu...Show more
The av_color_primaries_name function in libavutil/pixdesc.c in FFmpeg 3.3.3 may return a NULL pointer depending on a value contained in a file, but callers do not anticipate this, as demonstrated by the avcodec_string function in libavcodec/utils.c, leading to a NULL pointer dereference. (It is also conceivable that there is security relevance for a NULL pointer dereference in av_color_primaries_name calls within the ffprobe command-line program.)Show less
1Aacplusenc Project
1Aacplusenc
May 13, 2026
Sep 7, 2017
N/A· v4
7.8 HIGH· v3
6.8 MEDIUM· v2
DeleteBitBuffer in libbitbuf/bitbuffer.c in mp4tools aacplusenc 0.17.5 allows remote attackers to cause a denial of service (invalid memory write, SEGV on unknown address 0x000000000030, and application crash) or possibl...Show more
DeleteBitBuffer in libbitbuf/bitbuffer.c in mp4tools aacplusenc 0.17.5 allows remote attackers to cause a denial of service (invalid memory write, SEGV on unknown address 0x000000000030, and application crash) or possibly have unspecified other impact via a crafted .wav file, aka a NULL pointer dereference.Show less
1Bento4
1Bento4
May 13, 2026
Sep 6, 2017
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
The AP4_AvccAtom::InspectFields function in Core/Ap4AvccAtom.cpp in Bento4 mp4dump before 1.5.0-616 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted mp4...Show more
The AP4_AvccAtom::InspectFields function in Core/Ap4AvccAtom.cpp in Bento4 mp4dump before 1.5.0-616 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted mp4 file.Show less
1Axiosys
1Bento4
May 13, 2026
Sep 6, 2017
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
The AP4_Processor::Process function in Core/Ap4Processor.cpp in Bento4 mp4encrypt before 1.5.0-616 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted mp4 f...Show more
The AP4_Processor::Process function in Core/Ap4Processor.cpp in Bento4 mp4encrypt before 1.5.0-616 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted mp4 file.Show less
1Bento4
1Bento4
May 13, 2026
Sep 6, 2017
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
The AP4_AtomSampleTable::GetSample function in Core/Ap4AtomSampleTable.cpp in Bento4 mp42ts before 1.5.0-616 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a cra...Show more
The AP4_AtomSampleTable::GetSample function in Core/Ap4AtomSampleTable.cpp in Bento4 mp42ts before 1.5.0-616 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted mp4 file.Show less
1Embedthis
1Goahead
May 13, 2026
Sep 5, 2017
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
GoAhead 3.4.0 through 3.6.5 has a NULL Pointer Dereference in the websDecodeUrl function in http.c, leading to a crash for a "POST / HTTP/1.1" request.
2Debian
Rarlab
2Debian Linux
Unrar
May 13, 2026
Sep 3, 2017
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
The DecodeNumber function in unrarlib.c in unrar 0.0.1 (aka unrar-free or unrar-gpl) suffers from a NULL pointer dereference flaw triggered by a crafted RAR archive. NOTE: this may be the same as one of the several test...Show more
The DecodeNumber function in unrarlib.c in unrar 0.0.1 (aka unrar-free or unrar-gpl) suffers from a NULL pointer dereference flaw triggered by a crafted RAR archive. NOTE: this may be the same as one of the several test cases in the CVE-2017-11189 references.Show less
2Canonical
Imagemagick
2Imagemagick
Ubuntu Linux
May 13, 2026
Aug 31, 2017
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
In ImageMagick 7.0.6-10, a NULL Pointer Dereference issue is present in the ReadCUTImage function in coders/cut.c that could allow an attacker to cause a Denial of Service (in the QueueAuthenticPixelCacheNexus function w...Show more
In ImageMagick 7.0.6-10, a NULL Pointer Dereference issue is present in the ReadCUTImage function in coders/cut.c that could allow an attacker to cause a Denial of Service (in the QueueAuthenticPixelCacheNexus function within the MagickCore/cache.c file) by submitting a malformed image file.Show less
3Canonical
DebianImagemagick
3Debian Linux
ImagemagickUbuntu Linux
May 13, 2026
Aug 30, 2017
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
Null Pointer Dereference in the IdentifyImage function in MagickCore/identify.c in ImageMagick through 7.0.6-10 allows an attacker to perform denial of service by sending a crafted image file.
1Wireshark
1Wireshark
May 13, 2026
Aug 30, 2017
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
In Wireshark 2.4.0, the Modbus dissector could crash with a NULL pointer dereference. This was addressed in epan/dissectors/packet-mbtcp.c by adding length validation.
1Uclouvain
1Openjpeg
May 13, 2026
Aug 30, 2017
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
NULL pointer dereference vulnerabilities in the imagetopnm function in convert.c, sycc444_to_rgb function in color.c, color_esycc_to_rgb function in color.c, and sycc422_to_rgb function in color.c in OpenJPEG before 2.2....Show more
NULL pointer dereference vulnerabilities in the imagetopnm function in convert.c, sycc444_to_rgb function in color.c, color_esycc_to_rgb function in color.c, and sycc422_to_rgb function in color.c in OpenJPEG before 2.2.0 allow remote attackers to cause a denial of service (application crash) via crafted j2k files.Show less