CWE-476
5,862 CVEs • Abstraction: Base • Likelihood of Exploit: Medium
NULL Pointer Dereference
The product dereferences a pointer that it expects to be valid but is NULL.
CVEs (5,862)
CVE VENDORS PRODUCTS UPDATED PUBLISHED CVSS |
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A NULL pointer dereference flaw was found in the megasas-gen2 SCSI host bus adapter emulation of QEMU in versions before and including 6.0. This issue occurs in the megasas_command_cancelled() callback function while dro...Show more |
3Fedoraproject Nitro Enclaves ProjectRedhat3Enterprise Linux FedoraNitro EnclavesJun 17, 2026 Jun 1, 2021 N/A· v4 6.7 MEDIUM· v3 7.2 HIGH· v2 A flaw null pointer dereference in the Nitro Enclaves kernel driver was found in the way that Enclaves VMs forces closures on the enclave file descriptor. A local user of a host machine could use this flaw to crash the s...Show more |
A NULL-pointer deference issue was discovered in GNU_gama::set() in ellipsoid.h in Gama 2.04 which can lead to a denial of service (DOS) via segment faults caused by crafted inputs. |
1Redhat 1389 Directory Server Jun 17, 2026 May 28, 2021 N/A· v4 6.5 MEDIUM· v3 4.0 MEDIUM· v2 When using a sync_repl client in 389-ds-base, an authenticated attacker can cause a NULL pointer dereference using a specially crafted query, causing a crash. |
A NULL pointer dereference flaw was found in the am53c974 SCSI host bus adapter emulation of QEMU in versions before 6.0.0. This issue occurs while handling the 'Information Transfer' command. This flaw allows a privileg...Show more |
3Debian FedoraprojectQemu3Debian Linux FedoraQemuJun 17, 2026 May 28, 2021 N/A· v4 6.0 MEDIUM· v3 2.1 LOW· v2 A NULL pointer dereference flaw was found in the SCSI emulation support of QEMU in versions before 6.0.0. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service....Show more |
3Fedoraproject RedhatUpx3Enterprise Linux FedoraUpxJun 17, 2026 May 27, 2021 N/A· v4 7.8 HIGH· v3 6.8 MEDIUM· v2 Null pointer dereference was found in upx PackLinuxElf::canUnpack() in p_lx_elf.cpp,in version UPX 4.0.0. That allow attackers to execute arbitrary code and cause a denial of service via a crafted file. |
A NULL pointer dereference flaw was found in the floppy disk emulator of QEMU. This issue occurs while processing read/write ioport commands if the selected floppy drive is not initialized with a block device. This flaw...Show more |
2Debian Ffmpeg2Debian Linux FfmpegJun 17, 2026 May 25, 2021 N/A· v4 7.5 HIGH· v3 5.0 MEDIUM· v2 FFmpeg 4.2 is affected by null pointer dereference passed as argument to libavformat/aviobuf.c, which could cause a Denial of Service. |
Type Confusion in 802154 ACK Frames Handling. Zephyr versions >= v2.4.0 contain NULL Pointer Dereference (CWE-476). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-27r3-rxc...Show more |
Incorrect Error Handling in Bluetooth HCI core. Zephyr versions >= v1.14.2, >= v2.2.0 contain NULL Pointer Dereference (CWE-476). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories...Show more |
An issue was discovered in Envoy through 1.71.1. There is a remotely exploitable NULL pointer dereference and crash in TLS when an unknown TLS alert code is received. |
2Fedoraproject Slapi Nis Project2Fedora Slapi NisJun 17, 2026 May 20, 2021 N/A· v4 7.5 HIGH· v3 5.0 MEDIUM· v2 A flaw was found in slapi-nis in versions before 0.56.7. A NULL pointer dereference during the parsing of the Binding DN could allow an unauthenticated attacker to crash the 389-ds-base directory server. The highest thre...Show more |
Mikrotik RouterOs before 6.47 (stable tree) suffers from a memory corruption vulnerability in the /nova/bin/dot1x process. An authenticated remote attacker can cause a Denial of Service (NULL pointer dereference). |
Mikrotik RouterOs 6.44.6 (long-term tree) suffers from a memory corruption vulnerability in the /nova/bin/sniffer process. An authenticated remote attacker can cause a Denial of Service (NULL pointer dereference). |
A null pointer deference issue exists in GNU LibreDWG 0.10 via read_2004_compressed_section ../../src/decode.c:2337. |
A null pointer deference issue exists in GNU LibreDWG 0.10 via get_bmp ../../programs/dwgbmp.c:164. |
A null pointer dereference issue exists in GNU LibreDWG 0.10.2641 via htmlescape ../../programs/escape.c:29. which causes a denial of service (application crash). |
A null pointer deference issue exists in GNU LibreDWG 0.10.2641 via output_TEXT ../../programs/dwg2SVG.c:114, which causes a denial of service (application crash). |
6Debian FedoraprojectNetapp+3 more19Active Iq Unified Manager Clustered Data OntapClustered Data Ontap Antivirus Connector+16 moreOct 14, 2026 May 14, 2021 N/A· v4 5.9 MEDIUM· v3 4.3 MEDIUM· v2 A vulnerability found in libxml2 in versions before 2.9.11 shows that it did not propagate errors while parsing XML mixed content, causing a NULL dereference. If an untrusted XML document was parsed in recovery mode and...Show more |