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CWE-476

5,437 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 (5,437)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Foxitsoftware
2Phantompdf
Reader
Jun 17, 2026
Jun 4, 2020
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
An issue was discovered in Foxit Reader and PhantomPDF before 9.7. It has a NULL pointer dereference during the parsing of file data.
1Foxitsoftware
2Phantompdf
Reader
Jun 17, 2026
Jun 4, 2020
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
An issue was discovered in Foxit Reader and PhantomPDF before 9.7. It has a NULL pointer dereference.
1Foxitsoftware
1Phantompdf
Jun 17, 2026
Jun 4, 2020
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
An issue was discovered in Foxit PhantomPDF before 8.3.12. It has a NULL pointer dereference during the parsing of file data.
1Foxitsoftware
1Phantompdf
Jun 17, 2026
Jun 4, 2020
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
An issue was discovered in Foxit PhantomPDF before 8.3.12. It has a NULL pointer dereference.
2Fedoraproject
Znc
2Fedora
Znc
Jun 17, 2026
Jun 2, 2020
N/A· v4
6.5 MEDIUM· v3
3.5 LOW· v2
ZNC 1.8.0 up to 1.8.1-rc1 allows authenticated users to trigger an application crash (with a NULL pointer dereference) if echo-message is not enabled and there is no network.
4Canonical
DebianOpensuse+1 more
4Debian Linux
LeapQemu+1 more
Jun 17, 2026
Jun 2, 2020
N/A· v4
2.5 LOW· v3
1.9 LOW· v2
address_space_map in exec.c in QEMU 4.2.0 can trigger a NULL pointer dereference related to BounceBuffer.
1Istio
1Istio
Jun 17, 2026
Jun 2, 2020
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
Istio 1.4.x before 1.4.9 and Istio 1.5.x before 1.5.4 contain the following vulnerability when telemetry v2 is enabled: by sending a specially crafted packet, an attacker could trigger a Null Pointer Exception resulting...Show more
Istio 1.4.x before 1.4.9 and Istio 1.5.x before 1.5.4 contain the following vulnerability when telemetry v2 is enabled: by sending a specially crafted packet, an attacker could trigger a Null Pointer Exception resulting in a Denial of Service. This could be sent to the ingress gateway or a sidecar, triggering a null pointer exception which results in a denial of service. This also affects servicemesh-proxy where a null pointer exception flaw was found in servicemesh-proxy. When running Telemetry v2 (not on by default in version 1.4.x), an attacker could send a specially crafted packet to the ingress gateway or proxy sidecar, triggering a denial of service.Show less
1Redhat
1Libvirt
Jun 17, 2026
Jun 2, 2020
N/A· v4
6.5 MEDIUM· v3
4.0 MEDIUM· v2
A NULL pointer dereference was found in the libvirt API responsible introduced in upstream version 3.10.0, and fixed in libvirt 6.0.0, for fetching a storage pool based on its target path. In more detail, this flaw affec...Show more
A NULL pointer dereference was found in the libvirt API responsible introduced in upstream version 3.10.0, and fixed in libvirt 6.0.0, for fetching a storage pool based on its target path. In more detail, this flaw affects storage pools created without a target path such as network-based pools like gluster and RBD. Unprivileged users with a read-only connection could abuse this flaw to crash the libvirt daemon, resulting in a potential denial of service.Show less
5Canonical
DebianFedoraproject+2 more
5Debian Linux
FedoraLeap+2 more
Jun 17, 2026
Jun 1, 2020
N/A· v4
5.5 MEDIUM· v3
2.1 LOW· v2
A NULL pointer dereference in sanei_epson_net_read in SANE Backends before 1.0.30 allows a malicious device connected to the same local network as the victim to cause a denial of service, aka GHSL-2020-075.
1Jerryscript
1Jerryscript
Jun 17, 2026
May 28, 2020
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
parser/js/js-scanner.c in JerryScript 2.2.0 mishandles errors during certain out-of-memory conditions, as demonstrated by a scanner_reverse_info_list NULL pointer dereference and a scanner_scan_all assertion failure.
8Brocade
CanonicalDebian+5 more
12Cloud Backup
Communications Network Charging And ControlDebian Linux+9 more
Jun 17, 2026
May 27, 2020
N/A· v4
5.5 MEDIUM· v3
2.1 LOW· v2
ext/fts3/fts3_snippet.c in SQLite before 3.32.0 has a NULL pointer dereference via a crafted matchinfo() query.
1Linux
1Linux Kernel
Jun 17, 2026
May 27, 2020
N/A· v4
4.4 MEDIUM· v3
2.1 LOW· v2
An issue was discovered in the Linux kernel before 5.2. There is a NULL pointer dereference in tw5864_handle_frame() in drivers/media/pci/tw5864/tw5864-video.c, which may cause denial of service, aka CID-2e7682ebfc75.
2Fedoraproject
Sqlite
2Fedora
Sqlite
Jun 17, 2026
May 24, 2020
N/A· v4
5.5 MEDIUM· v3
2.1 LOW· v2
SQLite through 3.32.0 has a segmentation fault in sqlite3ExprCodeTarget in expr.c.
5Canonical
DebianLinux+2 more
113scale
Debian LinuxEnterprise Linux+8 more
Jun 17, 2026
May 22, 2020
N/A· v4
5.9 MEDIUM· v3
4.3 MEDIUM· v2
A NULL pointer dereference flaw was found in the Linux kernel's SELinux subsystem in versions before 5.7. This flaw occurs while importing the Commercial IP Security Option (CIPSO) protocol's category bitmap into the SEL...Show more
A NULL pointer dereference flaw was found in the Linux kernel's SELinux subsystem in versions before 5.7. This flaw occurs while importing the Commercial IP Security Option (CIPSO) protocol's category bitmap into the SELinux extensible bitmap via the' ebitmap_netlbl_import' routine. While processing the CIPSO restricted bitmap tag in the 'cipso_v4_parsetag_rbm' routine, it sets the security attribute to indicate that the category bitmap is present, even if it has not been allocated. This issue leads to a NULL pointer dereference issue while importing the same category bitmap into SELinux. This flaw allows a remote network user to crash the system kernel, resulting in a denial of service.Show less
1Microsoft
3Sharepoint Enterprise Server
Sharepoint FoundationSharepoint Server
Jun 17, 2026
May 21, 2020
N/A· v4
8.8 HIGH· v3
6.5 MEDIUM· v2
A remote code execution vulnerability exists in Microsoft SharePoint Server when it fails to properly identify and filter unsafe ASP.Net web controls, aka 'Microsoft SharePoint Server Remote Code Execution Vulnerability'...Show more
A remote code execution vulnerability exists in Microsoft SharePoint Server when it fails to properly identify and filter unsafe ASP.Net web controls, aka 'Microsoft SharePoint Server Remote Code Execution Vulnerability'.Show less
1Dovecot
1Dovecot
Jun 17, 2026
May 18, 2020
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
In Dovecot before 2.3.10.1, unauthenticated sending of malformed parameters to a NOOP command causes a NULL Pointer Dereference and crash in submission-login, submission, or lmtp.
1Paloaltonetworks
1Pan Os
Jun 17, 2026
May 13, 2020
N/A· v4
4.9 MEDIUM· v3
6.8 MEDIUM· v2
A NULL pointer dereference vulnerability in Palo Alto Networks PAN-OS allows an authenticated administrator to send a request that causes the rasmgr daemon to crash. Repeated attempts to send this request result in denia...Show more
A NULL pointer dereference vulnerability in Palo Alto Networks PAN-OS allows an authenticated administrator to send a request that causes the rasmgr daemon to crash. Repeated attempts to send this request result in denial of service to all PAN-OS services by restarting the device and putting it into maintenance mode. This issue affects: PAN-OS 9.1 versions earlier than 9.1.2.Show less
1Apache
1Nuttx
Jun 17, 2026
May 12, 2020
N/A· v4
9.8 CRITICAL· v3
5.1 MEDIUM· v2
The Apache NuttX (Incubating) project provides an optional separate "apps" repository which contains various optional components and example programs. One of these, ftpd, had a NULL pointer dereference bug. The NuttX RTO...Show more
The Apache NuttX (Incubating) project provides an optional separate "apps" repository which contains various optional components and example programs. One of these, ftpd, had a NULL pointer dereference bug. The NuttX RTOS itself is not affected. Users of the optional apps repository are affected only if they have enabled ftpd. Versions 6.15 to 8.2 are affected.Show less
1Windriver
1Vxworks
Jun 17, 2026
Apr 27, 2020
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
The IGMP component in VxWorks 6.8.3 IPNET CVE patches created in 2019 has a NULL Pointer Dereference.
2Canonical
Linuxfoundation
2Ceph
Ubuntu Linux
Jun 17, 2026
Apr 22, 2020
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
An issue was discovered in Ceph through 13.2.9. A POST request with an invalid tagging XML can crash the RGW process by triggering a NULL pointer exception.