Vulnerabilities (CVE)

Filtered by CWE-476
Total 5413 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2022-0632 1 Mruby 1 Mruby 2026-06-17 4.3 MEDIUM 5.5 MEDIUM
NULL Pointer Dereference in Homebrew mruby prior to 3.2.
CVE-2022-0617 2 Debian, Linux 2 Debian Linux, Linux Kernel 2026-06-17 4.9 MEDIUM 5.5 MEDIUM
A flaw null pointer dereference in the Linux kernel UDF file system functionality was found in the way user triggers udf_file_write_iter function for the malicious UDF image. A local user could use this flaw to crash the system. Actual from Linux kernel 4.2-rc1 till 5.17-rc2.
CVE-2022-0582 3 Debian, Fedoraproject, Wireshark 3 Debian Linux, Fedora, Wireshark 2026-06-17 7.5 HIGH 6.3 MEDIUM
Unaligned access in the CSN.1 protocol dissector in Wireshark 3.6.0 to 3.6.1 and 3.4.0 to 3.4.11 allows denial of service via packet injection or crafted capture file
CVE-2022-0562 4 Debian, Fedoraproject, Libtiff and 1 more 4 Debian Linux, Fedora, Libtiff and 1 more 2026-06-17 4.3 MEDIUM 5.5 MEDIUM
Null source pointer passed as an argument to memcpy() function within TIFFReadDirectory() in tif_dirread.c in libtiff versions from 4.0 to 4.3.0 could lead to Denial of Service via crafted TIFF file. For users that compile libtiff from sources, a fix is available with commit 561599c.
CVE-2022-0561 5 Debian, Fedoraproject, Libtiff and 2 more 5 Debian Linux, Fedora, Libtiff and 2 more 2026-06-17 4.3 MEDIUM 5.5 MEDIUM
Null source pointer passed as an argument to memcpy() function within TIFFFetchStripThing() in tif_dirread.c in libtiff versions from 3.9.0 to 4.3.0 could lead to Denial of Service via crafted TIFF file. For users that compile libtiff from sources, the fix is available with commit eecb0712.
CVE-2022-0481 1 Mruby 1 Mruby 2026-06-17 7.8 HIGH 7.5 HIGH
NULL Pointer Dereference in Homebrew mruby prior to 3.2.
CVE-2022-0433 2 Fedoraproject, Linux 2 Fedora, Linux Kernel 2026-06-17 4.9 MEDIUM 5.5 MEDIUM
A NULL pointer dereference flaw was found in the Linux kernel's BPF subsystem in the way a user triggers the map_get_next_key function of the BPF bloom filter. This flaw allows a local user to crash the system. This flaw affects Linux kernel versions prior to 5.17-rc1.
CVE-2022-0419 2 Fedoraproject, Radare 2 Fedora, Radare2 2026-06-17 4.3 MEDIUM 5.5 MEDIUM
NULL Pointer Dereference in GitHub repository radareorg/radare2 prior to 5.6.0.
CVE-2022-0326 1 Mruby 1 Mruby 2026-06-17 4.3 MEDIUM 5.5 MEDIUM
NULL Pointer Dereference in Homebrew mruby prior to 3.2.
CVE-2022-0286 2 Linux, Oracle 4 Linux Kernel, Communications Cloud Native Core Binding Support Function, Communications Cloud Native Core Network Exposure Function and 1 more 2026-06-17 2.1 LOW 5.5 MEDIUM
A flaw was found in the Linux kernel. A null pointer dereference in bond_ipsec_add_sa() may lead to local denial of service.
CVE-2022-0240 1 Mruby 1 Mruby 2026-06-17 5.0 MEDIUM 7.5 HIGH
mruby is vulnerable to NULL Pointer Dereference
CVE-2022-0168 2 Linux, Redhat 2 Linux Kernel, Enterprise Linux 2026-06-17 N/A 4.4 MEDIUM
A denial of service (DOS) issue was found in the Linux kernel’s smb2_ioctl_query_info function in the fs/cifs/smb2ops.c Common Internet File System (CIFS) due to an incorrect return from the memdup_user function. This flaw allows a local, privileged (CAP_SYS_ADMIN) attacker to crash the system.
CVE-2021-4441 1 Linux 1 Linux Kernel 2026-06-17 N/A 5.5 MEDIUM
In the Linux kernel, the following vulnerability has been resolved: spi: spi-zynq-qspi: Fix a NULL pointer dereference in zynq_qspi_exec_mem_op() In zynq_qspi_exec_mem_op(), kzalloc() is directly used in memset(), which could lead to a NULL pointer dereference on failure of kzalloc(). Fix this bug by adding a check of tmpbuf. This bug was found by a static analyzer. The analysis employs differential checking to identify inconsistent security operations (e.g., checks or kfrees) between two code paths and confirms that the inconsistent operations are not recovered in the current function or the callers, so they constitute bugs. Note that, as a bug found by static analysis, it can be a false positive or hard to trigger. Multiple researchers have cross-reviewed the bug. Builds with CONFIG_SPI_ZYNQ_QSPI=m show no new warnings, and our static analyzer no longer warns about this code.
CVE-2021-4236 1 Web Project 1 Web 2026-06-17 N/A 9.8 CRITICAL
Web Sockets do not execute any AuthenticateMethod methods which may be set, leading to a nil pointer dereference if the returned UserData pointer is assumed to be non-nil, or authentication bypass. This issue only affects WebSockets with an AuthenticateMethod hook. Request handlers that do not explicitly use WebSockets are not vulnerable.
CVE-2021-4217 3 Fedoraproject, Redhat, Unzip Project 3 Fedora, Enterprise Linux, Unzip 2026-06-17 N/A 3.3 LOW
A flaw was found in unzip. The vulnerability occurs due to improper handling of Unicode strings, which can lead to a null pointer dereference. This flaw allows an attacker to input a specially crafted zip file, leading to a crash or code execution.
CVE-2021-4209 3 Gnu, Netapp, Redhat 6 Gnutls, Active Iq Unified Manager, Hci Bootstrap Os and 3 more 2026-06-17 N/A 6.5 MEDIUM
A NULL pointer dereference flaw was found in GnuTLS. As Nettle's hash update functions internally call memcpy, providing zero-length input may cause undefined behavior. This flaw leads to a denial of service after authentication in rare circumstances.
CVE-2021-4198 1 Bitdefender 5 Antivirus Plus, Endpoint Security Tools, Internet Security and 2 more 2026-06-17 3.6 LOW 6.1 MEDIUM
A NULL Pointer Dereference vulnerability in the messaging_ipc.dll component as used in Bitdefender Total Security, Internet Security, Antivirus Plus, Endpoint Security Tools, VPN Standalone allows an attacker to arbitrarily crash product processes and generate crashdump files. This issue affects: Bitdefender Total Security versions prior to 26.0.3.29. Bitdefender Internet Security versions prior to 26.0.3.29. Bitdefender Antivirus Plus versions prior to 26.0.3.29. Bitdefender Endpoint Security Tools versions prior to 7.2.2.92. Bitdefender VPN Standalone versions prior to 25.5.0.48.
CVE-2021-4188 1 Mruby 1 Mruby 2026-06-17 5.0 MEDIUM 7.5 HIGH
mruby is vulnerable to NULL Pointer Dereference
CVE-2021-4186 2 Fedoraproject, Wireshark 2 Fedora, Wireshark 2026-06-17 5.0 MEDIUM 6.3 MEDIUM
Crash in the Gryphon dissector in Wireshark 3.4.0 to 3.4.10 allows denial of service via packet injection or crafted capture file
CVE-2021-4158 2 Qemu, Redhat 2 Qemu, Enterprise Linux 2026-06-17 N/A 6.0 MEDIUM
A NULL pointer dereference issue was found in the ACPI code of QEMU. A malicious, privileged user within the guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.