Home / CVEs
CVE Database
Published vulnerabilities with severity, known exploitation and official sources.
CVE-2026-28522
Medium · 6.5
CWE-476 Mar 16, 2026
arduino-TuyaOpen WiFiUDP Null Pointer Dereference Denial of Service
arduino-TuyaOpen before version 1.2.1 contains a null pointer dereference vulnerability in the WiFiUDP component. An attacker on the same local area network can send a large volume of malicious UDP packets that trigger a null pointer dereference, resulting in a denial-of-service condition.
CVE-2026-32249
Medium · 5.5
CWE-476 Mar 12, 2026
NFA regex engine NULL pointer dereference affects Vim < 9.2.0137
Vim is an open source, command line text editor. From 9.1.0011 to before 9.2.0137, Vim's NFA regex compiler, when encountering a collection containing a combining character as the endpoint of a character range (e.g. [0-0\u05bb]), incorrectly emits the composing bytes of that character as separate NFA states. This corrupts the NFA postfix stack, resulting in NFA_START_COLL having a NULL out1 pointer. When nfa_max_width() subsequently traverses the compiled NFA to estimate match width for the look-behind assertion, it dereferences state->out1->out without a NULL check, causing a segmentation fault. This vulnerability is fixed in 9.2.0137.
CVE-2026-27218
Medium · 5.5
CWE-476 Mar 10, 2026
Substance3D - Painter | NULL Pointer Dereference (CWE-476)
Substance3D - Painter versions 11.1.2 and earlier are affected by a NULL Pointer Dereference vulnerability that could lead to application denial-of-service. An attacker could exploit this vulnerability to crash the application, causing disruption to services. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
CVE-2026-27217
Medium · 5.5
CWE-476 Mar 10, 2026
Substance3D - Painter | NULL Pointer Dereference (CWE-476)
Substance3D - Painter versions 11.1.2 and earlier are affected by a NULL Pointer Dereference vulnerability that could lead to application denial-of-service. An attacker could exploit this vulnerability to crash the application, causing disruption to its availability. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
CVE-2026-27215
Medium · 5.5
CWE-476 Mar 10, 2026
Substance3D - Painter | NULL Pointer Dereference (CWE-476)
Substance3D - Painter versions 11.1.2 and earlier are affected by a NULL Pointer Dereference vulnerability that could lead to application denial-of-service. An attacker could exploit this vulnerability to crash the application, causing disruption to its availability. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
CVE-2026-27214
Medium · 5.5
CWE-476 Mar 10, 2026
Substance3D - Painter | NULL Pointer Dereference (CWE-476)
Substance3D - Painter versions 11.1.2 and earlier are affected by a NULL Pointer Dereference vulnerability that could lead to application denial-of-service. An attacker could exploit this vulnerability to crash the application, causing disruption to services. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
CVE-2026-21364
Medium · 5.5
CWE-476 Mar 10, 2026
Substance3D - Painter | NULL Pointer Dereference (CWE-476)
Substance3D - Painter versions 11.1.2 and earlier are affected by a NULL Pointer Dereference vulnerability that could lead to application denial-of-service. An attacker could exploit this vulnerability to crash the application, causing disruption to services. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
CVE-2026-21363
Medium · 5.5
CWE-476 Mar 10, 2026
Substance3D - Painter | NULL Pointer Dereference (CWE-476)
Substance3D - Painter versions 11.1.2 and earlier are affected by a NULL Pointer Dereference vulnerability that could lead to application denial-of-service. An attacker could exploit this vulnerability to crash the application, causing disruption to services. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
CVE-2026-31792
High · 7.8
CWE-476 Mar 10, 2026
iccDEV has a null pointer dereference in CIccTagXmlStruct::ParseTag()
iccDEV provides a set of libraries and tools for working with ICC color management profiles. Prior to 2.3.1.5, there is a null pointer dereference in CIccTagXmlStruct::ParseTag() causing a segmentation fault or denial of service. This vulnerability is fixed in 2.3.1.5.
CVE-2026-25168
Medium · 5.5
CWE-476 Mar 10, 2026
Windows Graphics Component Denial of Service Vulnerability
Null pointer dereference in Microsoft Graphics Component allows an unauthorized attacker to deny service locally.
CVE-2026-25165
High · 7.8
CWE-476 Mar 10, 2026
Performance Counters for Windows Elevation of Privilege Vulnerability
Null pointer dereference in Windows Performance Counters allows an authorized attacker to elevate privileges locally.
CVE-2026-24641
Medium · 6.5
CWE-476 Mar 10, 2026
NULL Pointer Dereference in Fortinet Fortiweb
A NULL Pointer Dereference vulnerability [CWE-476] vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.2, FortiWeb 7.6.0 through 7.6.6, FortiWeb 7.4 all versions, FortiWeb 7.2 all versions, FortiWeb 7.0 all versions may allow an authenticated attacker to crash the HTTP daemon via crafted HTTP requests.
CVE-2026-24293
High · 7.8
CWE-476 Mar 10, 2026
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
Null pointer dereference in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
CVE-2025-14769
High · 7.5
CWE-476 Mar 9, 2026
ipfw denial of service
In some cases, the `tcp-setmss` handler may free the packet data and throw an error without halting the rule processing engine. A subsequent rule can then allow the traffic after the packet data is gone, resulting in a NULL pointer dereference.
Maliciously crafted packets sent from a remote host may result in a Denial of Service (DoS) if the `tcp-setmss` directive is used and a subsequent rule would allow the traffic to pass.
CVE-2026-29781
Medium · 6.5
CWE-476 Mar 7, 2026
Sliver: Authenticated Nil-Pointer Dereference in Handlers
Sliver is a command and control framework that uses a custom Wireguard netstack. In versions from 1.7.3 and prior, a vulnerability exists in the Sliver C2 server's Protobuf unmarshalling logic due to a systemic lack of nil-pointer validation. By extracting valid implant credentials and omitting nested fields in a signed message, an authenticated actor can trigger an unhandled runtime panic. Because the mTLS, WireGuard, and DNS transport layers lack the panic recovery middleware present in the HTTP transport, this results in a global process termination. While requiring post-authentication access (a captured implant), this flaw effectively acts as an infrastructure "kill-switch," instantly severing all active sessions across the entire fleet and requiring a manual server restart to restore operations. At time of publication, there are no publicly available patches.
CVE-2025-69649
High · 7.5
CWE-476 Mar 6, 2026
NULL Pointer Dereference in Gnu Binutils
GNU Binutils thru 2.46 readelf contains a null pointer dereference vulnerability when processing a crafted ELF binary with malformed header fields. During relocation processing, an invalid or null section pointer may be passed into display_relocations(), resulting in a segmentation fault (SIGSEGV) and abrupt termination. No evidence of memory corruption beyond the null pointer dereference, nor any possibility of code execution, was observed.
CVE-2025-69651
Medium · 5.5
CWE-476 Mar 6, 2026
NULL Pointer Dereference in Gnu Binutils
GNU Binutils thru 2.46 readelf contains a vulnerability that leads to an invalid pointer free when processing a crafted ELF binary with malformed relocation or symbol data. If dump_relocations returns early due to parsing errors, the internal all_relocations array may remain partially uninitialized. Later, process_got_section_contents() may attempt to free an invalid r_symbol pointer, triggering memory corruption checks in glibc and causing the program to terminate with SIGABRT. No evidence of further memory corruption or code execution was observed; the impact is limited to denial of service. NOTE: this is disputed by third parties because the observed behavior occurred only in pre-release code and did not affect any tagged version.
CVE-2026-20064
Medium · 6.5
CWE-476 Mar 4, 2026
NULL Pointer Dereference in Cisco Secure Firewall Threat Defense
A vulnerability in of Cisco Secure Firewall Threat Defense (FTD) Software could allow an authenticated, local attacker to cause the device to unexpectedly reload, causing a denial of service (DoS) condition.
This vulnerability is due to improper validation of user-supplied input. An attacker with a low-privileged account could exploit this vulnerability by using crafted commands at the CLI prompt. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
CVE-2026-23237
Medium · 5.5
CWE-476 Mar 4, 2026
platform/x86: classmate-laptop: Add missing NULL pointer checks
In the Linux kernel, the following vulnerability has been resolved:
platform/x86: classmate-laptop: Add missing NULL pointer checks
In a few places in the Classmate laptop driver, code using the accel
object may run before that object's address is stored in the driver
data of the input device using it.
For example, cmpc_accel_sensitivity_store_v4() is the "show" method
of cmpc_accel_sensitivity_attr_v4 which is added in cmpc_accel_add_v4(),
before calling dev_set_drvdata() for inputdev->dev. If the sysfs
attribute is accessed prematurely, the dev_get_drvdata(&inputdev->dev)
call in in cmpc_accel_sensitivity_store_v4() returns NULL which
leads to a NULL pointer dereference going forward.
Moreover, sysfs attributes using the input device are added before
initializing that device by cmpc_add_acpi_notify_device() and if one
of them is accessed before running that function, a NULL pointer
dereference will occur.
For example, cmpc_accel_sensitivity_attr_v4 is added before calling
cmpc_add_acpi_notify_device() and if it is read prematurely, the
dev_get_drvdata(&acpi->dev) call in cmpc_accel_sensitivity_show_v4()
returns NULL which leads to a NULL pointer dereference going forward.
Fix this by adding NULL pointer checks in all of the relevant places.
CVE-2025-62817
High · 7.5
CWE-476 Mar 3, 2026
NULL Pointer Dereference in Samsung Exynos 1280 Firmware
An issue was discovered in Samsung Mobile Processor Exynos 1280, 2200, 1380, 1480, 2400, 1580, and 2500. A NULL pointer dereference of session->ncp_hdr_buf in __pilot_parsing_ncp() causes a denial of service.
CVE-2025-62815
Medium · 5.5
CWE-476 Mar 3, 2026
NULL Pointer Dereference in Samsung Exynos 1380 Firmware
An issue was discovered in Samsung Mobile Processor Exynos 1380, 1480, 2400, 1580, and 2500. A NULL pointer dereference of npu_proto_drv.ast.thread_ref in set_cpu_affinity() causes a denial of service.
CVE-2025-62814
High · 7.5
CWE-476 Mar 3, 2026
NULL Pointer Dereference in Samsung Exynos 1280 Firmware
An issue was discovered in Samsung Mobile Processor Exynos 1280, 2200, 1380, 1480, and 2400. A NULL pointer dereference of ft_handle in load_fw_utc_vector() causes a denial of service.
CVE-2026-27141
High · 7.5
CWE-476 Feb 26, 2026
Sending certain HTTP/2 frames can cause a server to panic in golang.org/x/net
Due to missing nil check, sending 0x0a-0x0f HTTP/2 frames will cause a running server to panic
CVE-2026-22722
Medium · 6.1
CWE-476 Feb 26, 2026
VMware Workstation for Windows null pointer dereference may allow an authenticated user to trigger a crash
A malicious actor with authenticated user privileges on a Windows based Workstation host may be able to cause a null pointer dereference error. To Remediate CVE-2026-22722, apply the patches listed in the "Fixed version" column of the 'Response Matrix'
CVE-2026-3202
High · 7.5
CWE-476 Feb 25, 2026
NULL Pointer Dereference in Wireshark
NTS-KE protocol dissector crash in Wireshark 4.6.0 to 4.6.3 allows denial of service