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CWE-476

5,438 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 (5,438)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Trendnet
4Tew 755ap2kac Firmware
Tew 755ap FirmwareTew 821dap2kac Firmware+1 more
Jun 17, 2026
Aug 10, 2021
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
Null Pointer Dereference vulnerability in TRENDnet TEW-755AP 1.11B03, TEW-755AP2KAC 1.11B03, TEW-821DAP2KAC 1.11B03, and TEW-825DAP 1.11B03, which could let a remote malicious user cause a denial of service by sending a...Show more
Null Pointer Dereference vulnerability in TRENDnet TEW-755AP 1.11B03, TEW-755AP2KAC 1.11B03, TEW-821DAP2KAC 1.11B03, and TEW-825DAP 1.11B03, which could let a remote malicious user cause a denial of service by sending a POST request to apply_cgi via an action ping_test without a ping_ipaddr key.Show less
1Dlink
9Dap 2310 Firmware
Dap 2330 FirmwareDap 2360 Firmware+6 more
Jun 17, 2026
Aug 10, 2021
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
Null Pointer Dereference vulnerability exists in D-Link DAP-2310 2.07.RC031, DAP-2330 1.07.RC028, DAP-2360 2.07.RC043, DAP-2553 3.06.RC027, DAP-2660 1.13.RC074, DAP-2690 3.16.RC100, DAP-2695 1.17.RC063, DAP-3320 1.01.RC0...Show more
Null Pointer Dereference vulnerability exists in D-Link DAP-2310 2.07.RC031, DAP-2330 1.07.RC028, DAP-2360 2.07.RC043, DAP-2553 3.06.RC027, DAP-2660 1.13.RC074, DAP-2690 3.16.RC100, DAP-2695 1.17.RC063, DAP-3320 1.01.RC014 and DAP-3662 1.01.RC022 in the upload_config function of sbin/httpd binary. When the binary handle the specific HTTP GET request, the content in upload_file variable is NULL in the upload_config function then the strncasecmp would take NULL as first argument, and incur the NULL pointer dereference vulnerability.Show less
1Dlink
9Dap 2310 Firmware
Dap 2330 FirmwareDap 2360 Firmware+6 more
Jun 17, 2026
Aug 10, 2021
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
Null Pointer Dereference vulnerability exists in D-Link DAP-2310 2.07.RC031, DAP-2330 1.07.RC028, DAP-2360 2.07.RC043, DAP-2553 3.06.RC027, DAP-2660 1.13.RC074, DAP-2690 3.16.RC100, DAP-2695 1.17.RC063, DAP-3320 1.01.RC0...Show more
Null Pointer Dereference vulnerability exists in D-Link DAP-2310 2.07.RC031, DAP-2330 1.07.RC028, DAP-2360 2.07.RC043, DAP-2553 3.06.RC027, DAP-2660 1.13.RC074, DAP-2690 3.16.RC100, DAP-2695 1.17.RC063, DAP-3320 1.01.RC014 and DAP-3662 1.01.RC022 in the upload_certificate function of sbin/httpd binary. When the binary handle the specific HTTP GET request, the strrchr in the upload_certificate function would take NULL as first argument, and incur the NULL pointer dereference vulnerability.Show less
1Dlink
9Dap 2310 Firmware
Dap 2330 FirmwareDap 2360 Firmware+6 more
Jun 17, 2026
Aug 10, 2021
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
Null pointer dereference vulnerability in D-Link DAP-2310 2,10RC039, DAP-2330 1.10RC036 BETA, DAP-2360 2.10RC055, DAP-2553 3.10rc039 BETA, DAP-2660 1.15rc131b, DAP-2690 3.20RC115 BETA, DAP-2695 1.20RC093, DAP-3320 1.05RC...Show more
Null pointer dereference vulnerability in D-Link DAP-2310 2,10RC039, DAP-2330 1.10RC036 BETA, DAP-2360 2.10RC055, DAP-2553 3.10rc039 BETA, DAP-2660 1.15rc131b, DAP-2690 3.20RC115 BETA, DAP-2695 1.20RC093, DAP-3320 1.05RC027 BETA and DAP-3662 1.05rc069 in the sbin/httpd binary. The crash happens at the `atoi' operation when a specific network package are sent to the httpd binary.Show less
1Siemens
2Jt2go
Teamcenter Visualization
Jun 17, 2026
Aug 10, 2021
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
A vulnerability has been identified in JT2Go (All versions < V13.2.0.1), Teamcenter Visualization (All versions < V13.2.0.1). When parsing specially crafted CGM Files, a NULL pointer deference condition could cause the a...Show more
A vulnerability has been identified in JT2Go (All versions < V13.2.0.1), Teamcenter Visualization (All versions < V13.2.0.1). When parsing specially crafted CGM Files, a NULL pointer deference condition could cause the application to crash. The application must be restarted to restore the service. An attacker could leverage this vulnerability to cause a Denial-of-Service condition in the application.Show less
2Exiv2
Fedoraproject
2Exiv2
Fedora
Jun 17, 2026
Aug 9, 2021
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. A null pointer dereference was found in Exiv2 versions v0.27.4 and earlier. The null pointer dere...Show more
Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. A null pointer dereference was found in Exiv2 versions v0.27.4 and earlier. The null pointer dereference is triggered when Exiv2 is used to print the metadata of a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service, if they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when printing the interpreted (translated) data, which is a less frequently used Exiv2 operation that requires an extra command line option (`-p t` or `-P t`). The bug is fixed in version v0.27.5.Show less
2Exiv2
Fedoraproject
2Exiv2
Fedora
Jun 17, 2026
Aug 9, 2021
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. A null pointer dereference was found in Exiv2 versions v0.27.4 and earlier. The null pointer dere...Show more
Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. A null pointer dereference was found in Exiv2 versions v0.27.4 and earlier. The null pointer dereference is triggered when Exiv2 is used to print the metadata of a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service, if they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when printing the interpreted (translated) data, which is a less frequently used Exiv2 operation that requires an extra command line option (`-p t` or `-P t`). The bug is fixed in version v0.27.5.Show less
1Linux
1Linux Kernel
Jun 17, 2026
Aug 8, 2021
N/A· v4
5.5 MEDIUM· v3
2.1 LOW· v2
net/nfc/llcp_sock.c in the Linux kernel before 5.12.10 allows local unprivileged users to cause a denial of service (NULL pointer dereference and BUG) by making a getsockname call after a certain type of failure of a bin...Show more
net/nfc/llcp_sock.c in the Linux kernel before 5.12.10 allows local unprivileged users to cause a denial of service (NULL pointer dereference and BUG) by making a getsockname call after a certain type of failure of a bind call.Show less
1Linux
1Linux Kernel
Jun 17, 2026
Aug 8, 2021
N/A· v4
5.5 MEDIUM· v3
2.1 LOW· v2
The mac80211 subsystem in the Linux kernel before 5.12.13, when a device supporting only 5 GHz is used, allows attackers to cause a denial of service (NULL pointer dereference in the radiotap parser) by injecting a frame...Show more
The mac80211 subsystem in the Linux kernel before 5.12.13, when a device supporting only 5 GHz is used, allows attackers to cause a denial of service (NULL pointer dereference in the radiotap parser) by injecting a frame with 802.11a rates.Show less
1Linux
1Linux Kernel
Jun 17, 2026
Aug 8, 2021
N/A· v4
5.5 MEDIUM· v3
2.1 LOW· v2
arch/powerpc/perf/core-book3s.c in the Linux kernel before 5.12.13, on systems with perf_event_paranoid=-1 and no specific PMU driver support registered, allows local users to cause a denial of service (perf_instruction_...Show more
arch/powerpc/perf/core-book3s.c in the Linux kernel before 5.12.13, on systems with perf_event_paranoid=-1 and no specific PMU driver support registered, allows local users to cause a denial of service (perf_instruction_pointer NULL pointer dereference and OOPS) via a "perf record" command.Show less
1Axiosys
1Bento4
Jun 17, 2026
Aug 5, 2021
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
An issue was discovered in Bento4 through v1.6.0-636. A NULL pointer dereference exists in the AP4_DescriptorFinder::Test component located in /Core/Ap4Descriptor.h. It allows an attacker to cause a denial of service (DO...Show more
An issue was discovered in Bento4 through v1.6.0-636. A NULL pointer dereference exists in the AP4_DescriptorFinder::Test component located in /Core/Ap4Descriptor.h. It allows an attacker to cause a denial of service (DOS).Show less
1Axiosys
1Bento4
Jun 17, 2026
Aug 5, 2021
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
An issue was discovered in Bento4 through v1.6.0-636. A NULL pointer dereference exists in the function AP4_StszAtom::WriteFields located in Ap4StszAtom.cpp. It allows an attacker to cause a denial of service (DOS).
1Gpac
1Gpac
Jun 17, 2026
Aug 4, 2021
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
The gf_dash_segmenter_probe_input function in GPAC v0.8 allows attackers to cause a denial of service (NULL pointer dereference) via a crafted file in the MP4Box command.
1Codesys
1Ethernetip
Jun 17, 2026
Aug 4, 2021
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
In CODESYS EtherNetIP before 4.1.0.0, specific EtherNet/IP requests may cause a null pointer dereference in the downloaded vulnerable EtherNet/IP stack that is executed by the CODESYS Control runtime system.
1Codesys
1Gateway
Jun 17, 2026
Aug 4, 2021
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
In CODESYS Gateway V3 before 3.5.17.10, there is a NULL Pointer Dereference. Crafted communication requests may cause a Null pointer dereference in the affected CODESYS products and may result in a denial-of-service cond...Show more
In CODESYS Gateway V3 before 3.5.17.10, there is a NULL Pointer Dereference. Crafted communication requests may cause a Null pointer dereference in the affected CODESYS products and may result in a denial-of-service condition.Show less
1Ecobee
1Ecobee3 Lite Firmware
Jun 17, 2026
Aug 3, 2021
N/A· v4
7.5 HIGH· v3
7.8 HIGH· v2
A NULL pointer dereference vulnerability exists on the ecobee3 lite 4.5.81.200 device in the HomeKit Wireless Access Control setup process. A threat actor can exploit this vulnerability to cause a denial of service, forc...Show more
A NULL pointer dereference vulnerability exists on the ecobee3 lite 4.5.81.200 device in the HomeKit Wireless Access Control setup process. A threat actor can exploit this vulnerability to cause a denial of service, forcing the device to reboot via a crafted HTTP request.Show less
1Videolan
1Vlc Media Player
Jun 17, 2026
Jul 26, 2021
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
A NULL-pointer dereference in "Open" in avi.c of VideoLAN VLC Media Player 3.0.11 can a denial of service (DOS) in the application.
4Debian
MitNetapp+1 more
7Active Iq Unified Manager
Debian LinuxKerberos 5+4 more
Jun 17, 2026
Jul 22, 2021
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
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. Thi...Show more
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.Show less
1Mitsubishielectric
3Fx3u Enet L Firmware
Fx3u Enet P502 FirmwareFx3u Enet Firmware
Jun 17, 2026
Jul 22, 2021
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
NULL Pointer Dereference in MELSEC-F Series FX3U-ENET firmware version 1.14 and prior, FX3U-ENET-L firmware version 1.14 and prior and FX3U-ENET-P502 firmware version 1.14 and prior allows a remote unauthenticated attack...Show more
NULL Pointer Dereference in MELSEC-F Series FX3U-ENET firmware version 1.14 and prior, FX3U-ENET-L firmware version 1.14 and prior and FX3U-ENET-P502 firmware version 1.14 and prior allows a remote unauthenticated attacker to cause a DoS condition in communication by sending specially crafted packets. Control by MELSEC-F series PLC is not affected and system reset is required for recovery.Show less
1Nvidia
1Gpu Display Driver
Jun 17, 2026
Jul 22, 2021
N/A· v4
5.5 MEDIUM· v3
4.9 MEDIUM· v2
NVIDIA Windows GPU Display Driver for Windows contains a vulnerability in the NVIDIA kernel mode layer (nvlddmkm.sys) handler for DxgkDdiEscape where dereferencing a NULL pointer may lead to a system crash.