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CWE-476

5,612 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 (5,612)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Saitoha
1Libsixel
Jun 17, 2026
May 14, 2026
N/A· v4
2.5 LOW· v3
N/A· v2
libsixel is a SIXEL encoder/decoder implementation derived from kmiya's sixel. From to 1.8.7-r1, a wrong NULL check after an allocation call in sixel_decode_raw and sixel_decode causes a NULL pointer dereference wheneve...Show more
libsixel is a SIXEL encoder/decoder implementation derived from kmiya's sixel. From to 1.8.7-r1, a wrong NULL check after an allocation call in sixel_decode_raw and sixel_decode causes a NULL pointer dereference whenever the allocation fails. The check tests the address of the output parameter (always non-NULL) instead of the value the malloc returned. On allocation failure, the function continues and writes through a NULL pointer, crashing the process. This is a denial of service against any caller of these public APIs that hits a low-memory condition. This vulnerability is fixed in 1.8.7-r2.Show less
1Linux
1Linux Kernel
Jun 26, 2026
May 13, 2026
N/A· v4
5.5 MEDIUM· v3
N/A· v2
In the Linux kernel, the following vulnerability has been resolved: ASoC: amd: acp3x-rt5682-max9836: Add missing error check for clock acquisition The acp3x_5682_init() function did not check the return value of clk_ge...Show more
In the Linux kernel, the following vulnerability has been resolved: ASoC: amd: acp3x-rt5682-max9836: Add missing error check for clock acquisition The acp3x_5682_init() function did not check the return value of clk_get(), which could lead to dereferencing error pointers in rt5682_clk_enable(). Fix this by: 1. Changing clk_get() to the device-managed devm_clk_get(). 2. Adding proper IS_ERR() checks for both clock acquisitions.Show less
1F5
23Big Ip Access Policy Manager
Big Ip Advanced Firewall ManagerBig Ip Advanced Web Application Firewall+20 more
Jun 23, 2026
May 13, 2026
8.7 HIGH· v4
7.5 HIGH· v3
N/A· v2
When an HTTP/2 profile and an iRule containing the HTTP::redirect or HTTP::respond command are configured on a virtual server, undisclosed requests can cause the Traffic Management Microkernel (TMM) process to terminate....Show more
When an HTTP/2 profile and an iRule containing the HTTP::redirect or HTTP::respond command are configured on a virtual server, undisclosed requests can cause the Traffic Management Microkernel (TMM) process to terminate.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.Show less
1M2team
1Nanazip
Jun 17, 2026
May 12, 2026
N/A· v4
5.5 MEDIUM· v3
N/A· v2
NanaZip is an open source file archive. From 5.0.1252.0 to before 6.0.1698.0, a null-pointer dereference exists in the UFS/UFS2 filesystem image parser in NanaZip. The vulnerability is triggered when opening a crafted UF...Show more
NanaZip is an open source file archive. From 5.0.1252.0 to before 6.0.1698.0, a null-pointer dereference exists in the UFS/UFS2 filesystem image parser in NanaZip. The vulnerability is triggered when opening a crafted UFS image where the root inode (inode 2) is set to IFLNK (symlink) instead of IFDIR (directory). The parser unconditionally treats the root inode as a directory without checking its type, and when the symlink has an embedded target (small di_size), the directory data buffer is zero-length, causing a null-pointer dereference on the first read. This vulnerability is fixed in 6.0.1698.0.Show less
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Jun 17, 2026
May 12, 2026
N/A· v4
7.4 HIGH· v3
N/A· v2
Windows TCP/IP Denial of Service Vulnerability
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Jun 17, 2026
May 12, 2026
N/A· v4
7.4 HIGH· v3
N/A· v2
Windows TCP/IP Denial of Service Vulnerability
1Microsoft
4Windows 11 24h2
Windows 11 25h2Windows 11 26h1+1 more
Jun 17, 2026
May 12, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Null pointer dereference in Windows TCP/IP allows an unauthorized attacker to deny service over a network.
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Jun 17, 2026
May 12, 2026
N/A· v4
7.1 HIGH· v3
N/A· v2
Windows TCP/IP Denial of Service Vulnerability
1Adobe
1Illustrator
Aug 28, 2026
May 12, 2026
N/A· v4
5.5 MEDIUM· v3
N/A· v2
Illustrator versions 29.8.6, 30.3 and earlier are affected by a NULL Pointer Dereference vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the appl...Show more
Illustrator versions 29.8.6, 30.3 and earlier are affected by a NULL Pointer Dereference vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service condition. Exploitation of this issue requires user interaction in that a victim must open a malicious file.Show less
1Microsoft
1Windows Server 2025
Jun 17, 2026
May 12, 2026
N/A· v4
6.5 MEDIUM· v3
N/A· v2
Null pointer dereference in Windows Storport Miniport Driver allows an unauthorized attacker to deny service over a network.
1Microsoft
13Windows 10 1607
Windows 10 1809Windows 10 21h2+10 more
Jun 17, 2026
May 12, 2026
N/A· v4
5.5 MEDIUM· v3
N/A· v2
Null pointer dereference in Windows LDAP - Lightweight Directory Access Protocol allows an authorized attacker to deny service locally.
1Intel
1Quickassist Technology
Jun 17, 2026
May 12, 2026
6.8 MEDIUM· v4
5.5 MEDIUM· v3
N/A· v2
Null pointer dereference for some Intel(R) QAT software drivers for Windows before version 2.6.0 within Ring 3: User Applications may allow a denial of service. Unprivileged software adversary with an authenticated user...Show more
Null pointer dereference for some Intel(R) QAT software drivers for Windows before version 2.6.0 within Ring 3: User Applications may allow a denial of service. Unprivileged software adversary with an authenticated user combined with a low complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.Show less
1Intel
1Quickassist Technology
Jun 17, 2026
May 12, 2026
6.9 MEDIUM· v4
6.1 MEDIUM· v3
N/A· v2
Null pointer dereference for some Intel(R) QAT software drivers for Windows before version 1.13 within Ring 3: User Applications may allow a denial of service. Unprivileged software adversary with an authenticated user c...Show more
Null pointer dereference for some Intel(R) QAT software drivers for Windows before version 1.13 within Ring 3: User Applications may allow a denial of service. Unprivileged software adversary with an authenticated user combined with a low complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (low), integrity (none) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.Show less
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-
Aug 11, 2026
May 12, 2026
8.7 HIGH· v4
7.5 HIGH· v3
N/A· v2
The affected devices contain a null pointer dereference vulnerability while processing specially crafted IPv4 requests. This could allow an attacker to cause denial of service condition. A manual restart is required to r...Show more
The affected devices contain a null pointer dereference vulnerability while processing specially crafted IPv4 requests. This could allow an attacker to cause denial of service condition. A manual restart is required to recover the system.Show less
1Apple
4Ipados
Iphone OsMacos+1 more
Jun 17, 2026
May 11, 2026
N/A· v4
6.2 MEDIUM· v3
N/A· v2
A null pointer dereference was addressed with improved input validation. This issue is fixed in iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5. An attacker on the local network may be able to cause a denial-of-ser...Show more
A null pointer dereference was addressed with improved input validation. This issue is fixed in iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5. An attacker on the local network may be able to cause a denial-of-service.Show less
1Open5gs
1Open5gs
Jul 24, 2026
May 11, 2026
2.1 LOW· v4
6.5 MEDIUM· v3
4.0 MEDIUM· v2
A vulnerability was determined in Open5GS up to 2.7.7. Affected is the function smf_nsmf_handle_create_data_in_hsmf of the component SMF. Executing a manipulation can lead to null pointer dereference. The attack may be p...Show more
A vulnerability was determined in Open5GS up to 2.7.7. Affected is the function smf_nsmf_handle_create_data_in_hsmf of the component SMF. Executing a manipulation can lead to null pointer dereference. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.Show less
1Php
1Php
Jul 24, 2026
May 10, 2026
2.9 LOW· v4
7.5 HIGH· v3
N/A· v2
In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, when a SOAP server has a typemap configured, the decoding process contains a mistake which checks the wrong variable...Show more
In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, when a SOAP server has a typemap configured, the decoding process contains a mistake which checks the wrong variable in case of missing value element.  This leads to dereferences a NULL pointer, causing a segmentation fault. This allows a remote unauthenticated attacker to crash the PHP SOAP server process, resulting in denial of service.Show less
1Php
1Php
Jul 24, 2026
May 10, 2026
2.1 LOW· v4
6.5 MEDIUM· v3
N/A· v2
In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, a mismatch between encoding lists in Oniguruma and mbfl leads to  a NULL pointer dereference, resulting in a segmenta...Show more
In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, a mismatch between encoding lists in Oniguruma and mbfl leads to  a NULL pointer dereference, resulting in a segmentation fault and denial of service. The vulnerability is exploitable when user-controlled input can influence the encoding passed to mb_regex_encoding().Show less
1Argoproj
1Argo Workflows
Jul 24, 2026
May 9, 2026
2.3 LOW· v4
6.5 MEDIUM· v3
N/A· v2
Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. From version 4.0.0 to before version 4.0.5, a nil pointer dereference in server/auth/gatekeeper.go rbacAuth...Show more
Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. From version 4.0.0 to before version 4.0.5, a nil pointer dereference in server/auth/gatekeeper.go rbacAuthorization() causes a panic (denial of service) for SSO users whose claims match a namespace-level RBAC rule but not an SSO-namespace rule, when SSO_DELEGATE_RBAC_TO_NAMESPACE=true. This issue has been patched in version 4.0.5.Show less
1Pgbouncer
1Pgbouncer
Jul 24, 2026
May 9, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
A possible null pointer reference in PgBouncer before 1.25.2 could lead to a crash, if a server sends an error response without SQLSTATE field.