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CWE-476

5,859 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 (5,859)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Php
1Php
Nov 21, 2024
Nov 20, 2018
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
ext/standard/var.c in PHP 5.x through 7.1.24 on Windows allows attackers to cause a denial of service (NULL pointer dereference and application crash) because com and com_safearray_proxy return NULL in com_properties_get...Show more
ext/standard/var.c in PHP 5.x through 7.1.24 on Windows allows attackers to cause a denial of service (NULL pointer dereference and application crash) because com and com_safearray_proxy return NULL in com_properties_get in ext/com_dotnet/com_handlers.c, as demonstrated by a serialize call on COM("WScript.Shell").Show less
1Zte
1Zxhn F670 Firmware
Jun 17, 2026
Nov 16, 2018
N/A· v4
6.5 MEDIUM· v3
3.3 LOW· v2
All versions up to V1.1.10P3T18 of ZTE ZXHN F670 product are impacted by null pointer dereference vulnerability, which may allows an attacker to cause a denial of service via appviahttp service.
2Gnu
Invisible Island
2Ncurses
Ncurses
Jul 23, 2026
Nov 12, 2018
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
In ncurses, possibly a 6.x version, there is a NULL pointer dereference at the function _nc_name_match that will lead to a denial of service attack. NOTE: the original report stated version 6.1, but the issue did not rep...Show more
In ncurses, possibly a 6.x version, there is a NULL pointer dereference at the function _nc_name_match that will lead to a denial of service attack. NOTE: the original report stated version 6.1, but the issue did not reproduce for that version according to the maintainer or a reliable third-partyShow less
2Gnu
Invisible Island
2Ncurses
Ncurses
Jul 23, 2026
Nov 12, 2018
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
In ncurses 6.1, there is a NULL pointer dereference at function _nc_parse_entry in parse_entry.c that will lead to a denial of service attack. The product proceeds to the dereference code path even after a "dubious chara...Show more
In ncurses 6.1, there is a NULL pointer dereference at function _nc_parse_entry in parse_entry.c that will lead to a denial of service attack. The product proceeds to the dereference code path even after a "dubious character `*' in name or alias field" detection.Show less
3Canonical
DebianLibtiff
3Debian Linux
LibtiffUbuntu Linux
Nov 21, 2024
Nov 12, 2018
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
In LibTIFF 4.0.9, there is a NULL pointer dereference in the TIFFWriteDirectorySec function in tif_dirwrite.c that will lead to a denial of service attack, as demonstrated by tiffset.
1Nasm
1Netwide Assembler
Nov 21, 2024
Nov 12, 2018
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
Netwide Assembler (NASM) 2.14rc15 has a NULL pointer dereference in the function find_label in asm/labels.c that will lead to a DoS attack.
3Libwpd Project
RedhatSuse
3Enterprise Linux
LibwpdSuse Linux Enterprise Server
Nov 21, 2024
Nov 12, 2018
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
In libwpd 0.10.2, there is a NULL pointer dereference in the function WP6ContentListener::defineTable in WP6ContentListener.cpp that will lead to a denial of service attack. This is related to WPXTable.h.
2Debian
Uriparser Project
2Debian Linux
Uriparser
Nov 21, 2024
Nov 12, 2018
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
An issue was discovered in uriparser before 0.9.0. UriCommon.c allows attempted operations on NULL input via a uriResetUri* function.
1Ethereum
1Go Ethereum
Nov 21, 2024
Nov 12, 2018
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
cmd/evm/runner.go in Go Ethereum (aka geth) 1.8.17 allows attackers to cause a denial of service (SEGV) via crafted bytecode.
2Canonical
Freedesktop
2Poppler
Ubuntu Linux
Nov 21, 2024
Nov 10, 2018
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
Poppler before 0.70.0 has a NULL pointer dereference in _poppler_attachment_new when called from poppler_annot_file_attachment_get_attachment.
1Libav
1Libav
Nov 21, 2024
Nov 9, 2018
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
In Libav 12.3, a NULL pointer dereference (RIP points to zero) issue in ff_mpa_synth_filter_float in libavcodec/mpegaudiodsp_template.c can cause a segmentation fault (application crash) via a crafted mov file.
1Mz Automation
1Libiec61850
Nov 21, 2024
Nov 9, 2018
N/A· v4
4.3 MEDIUM· v3
4.3 MEDIUM· v2
An issue has been found in libIEC61850 v1.3. It is a NULL pointer dereference in Ethernet_sendPacket in ethernet_bsd.c.
1Mz Automation
1Libiec61850
Nov 21, 2024
Nov 9, 2018
N/A· v4
4.3 MEDIUM· v3
4.3 MEDIUM· v2
An issue has been found in libIEC61850 v1.3. It is a SEGV in Ethernet_receivePacket in ethernet_bsd.c.
2Canonical
Freedesktop
2Poppler
Ubuntu Linux
Nov 21, 2024
Nov 7, 2018
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
An issue was discovered in Poppler 0.71.0. There is a NULL pointer dereference in goo/GooString.h, will lead to denial of service, as demonstrated by utils/pdfdetach.cc not validating a filename of an embedded file befor...Show more
An issue was discovered in Poppler 0.71.0. There is a NULL pointer dereference in goo/GooString.h, will lead to denial of service, as demonstrated by utils/pdfdetach.cc not validating a filename of an embedded file before constructing a save path.Show less
1Mz Automation
1Libiec61850
Nov 21, 2024
Nov 5, 2018
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
An issue has been found in libIEC61850 v1.3. It is a NULL pointer dereference in ClientDataSet_getValues in client/ied_connection.c.
1Xen
1Xen
Nov 21, 2024
Nov 1, 2018
N/A· v4
8.8 HIGH· v3
7.2 HIGH· v2
An issue was discovered in Xen 4.9.x through 4.11.x, on Intel x86 platforms, allowing x86 HVM and PVH guests to cause a host OS denial of service (NULL pointer dereference) or possibly have unspecified other impact becau...Show more
An issue was discovered in Xen 4.9.x through 4.11.x, on Intel x86 platforms, allowing x86 HVM and PVH guests to cause a host OS denial of service (NULL pointer dereference) or possibly have unspecified other impact because nested VT-x is not properly restricted.Show less
4Canonical
DebianJasper Project+1 more
5Debian Linux
JasperLinux Enterprise Desktop+2 more
Nov 21, 2024
Oct 31, 2018
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
An issue was discovered in JasPer 2.0.14. There is a NULL pointer dereference in the function ras_putdatastd in ras/ras_enc.c.
1Libav
1Libav
Nov 21, 2024
Oct 30, 2018
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
There exists a NULL pointer dereference in ff_vc1_parse_frame_header_adv in vc1.c in Libav 12.3, which allows attackers to cause a denial-of-service through a crafted aac file.
2Canonical
Libtiff
2Libtiff
Ubuntu Linux
Nov 21, 2024
Oct 26, 2018
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
An issue was discovered in LibTIFF 4.0.9. There is a NULL pointer dereference in the function LZWDecode in the file tif_lzw.c.
3Debian
GnuNetapp
3Binutils
Data OntapDebian Linux
Nov 21, 2024
Oct 23, 2018
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
An issue was discovered in elf_link_input_bfd in elflink.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31. There is a NULL pointer dereference in elf_link_input_bfd when use...Show more
An issue was discovered in elf_link_input_bfd in elflink.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31. There is a NULL pointer dereference in elf_link_input_bfd when used for finding STT_TLS symbols without any TLS section. A specially crafted ELF allows remote attackers to cause a denial of service, as demonstrated by ld.Show less