NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

CVEs (5,440)

CVE VENDORS PRODUCTS UPDATED PUBLISHED CVSS
CVE-2021-1917 1Qualcomm 84Apq8017 Firmware Apq8053 FirmwareAqt1000 Firmware+81 more Jun 17, 2026 Oct 20, 2021 N/A· v4 8.4 HIGH· v3 7.2 HIGH· v2 Null pointer dereference can occur due to memory allocation failure in DIAG in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Wearables
CVE-2021-40732 2Adobe Debian 2Debian Linux Xmp Toolkit Software Development Kit Jun 17, 2026 Oct 13, 2021 N/A· v4 6.1 MEDIUM· v3 5.8 MEDIUM· v2 XMP Toolkit version 2020.1 (and earlier) is affected by a null pointer dereference vulnerability that could result in leaking data from certain memory locations and causing a local denial of service in the context of the...Show more XMP Toolkit version 2020.1 (and earlier) is affected by a null pointer dereference vulnerability that could result in leaking data from certain memory locations and causing a local denial of service in the context of the current user. User interaction is required to exploit this vulnerability in that the victim will need to open a specially crafted MXF file.Show less
CVE-2021-3322 1Zephyrproject 1Zephyr Jun 17, 2026 Oct 12, 2021 N/A· v4 6.5 MEDIUM· v3 3.3 LOW· v2 Unexpected Pointer Aliasing in IEEE 802154 Fragment Reassembly in Zephyr. Zephyr versions >= >=2.4.0 contain NULL Pointer Dereference (CWE-476). For more information, see https://github.com/zephyrproject-rtos/zephyr/secu...Show more Unexpected Pointer Aliasing in IEEE 802154 Fragment Reassembly in Zephyr. Zephyr versions >= >=2.4.0 contain NULL Pointer Dereference (CWE-476). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p86r-gc4r-4mq3Show less
CVE-2020-22674 1Gpac 1Gpac Jun 17, 2026 Oct 12, 2021 N/A· v4 5.5 MEDIUM· v3 4.3 MEDIUM· v2 An issue was discovered in gpac 0.8.0. An invalid memory dereference exists in the function FixTrackID located in isom_intern.c, which allows attackers to cause a denial of service (DoS) via a crafted input.
CVE-2021-3671 3Debian NetappSamba 5Debian Linux Management Services For Element SoftwareManagement Services For Netapp Hci+2 more Jun 17, 2026 Oct 12, 2021 N/A· v4 6.5 MEDIUM· v3 4.0 MEDIUM· v2 A null pointer de-reference was found in the way samba kerberos server handled missing sname in TGS-REQ (Ticket Granting Server - Request). An authenticated user could use this flaw to crash the samba server.
CVE-2021-25491 1Google 1Android Jun 17, 2026 Oct 6, 2021 N/A· v4 4.4 MEDIUM· v3 2.1 LOW· v2 A vulnerability in mfc driver prior to SMR Oct-2021 Release 1 allows memory corruption via NULL-pointer dereference.
CVE-2021-3319 1Zephyrproject 1Zephyr Jun 17, 2026 Oct 5, 2021 N/A· v4 9.8 CRITICAL· v3 7.5 HIGH· v2 DOS: Incorrect 802154 Frame Validation for Omitted Source / Dest Addresses. Zephyr versions >= > v2.4.0 contain NULL Pointer Dereference (CWE-476), Attempt to Access Child of a Non-structure Pointer (CWE-588). For more i...Show more DOS: Incorrect 802154 Frame Validation for Omitted Source / Dest Addresses. Zephyr versions >= > v2.4.0 contain NULL Pointer Dereference (CWE-476), Attempt to Access Child of a Non-structure Pointer (CWE-588). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-94jg-2p6q-5364Show less
CVE-2021-41524 4Apache FedoraprojectNetapp+1 more 4Cloud Backup FedoraHttp Server+1 more Jun 17, 2026 Oct 5, 2021 N/A· v4 7.5 HIGH· v3 5.0 MEDIUM· v2 While fuzzing the 2.4.49 httpd, a new null pointer dereference was detected during HTTP/2 request processing, allowing an external source to DoS the server. This requires a specially crafted request. The vulnerability wa...Show more While fuzzing the 2.4.49 httpd, a new null pointer dereference was detected during HTTP/2 request processing, allowing an external source to DoS the server. This requires a specially crafted request. The vulnerability was recently introduced in version 2.4.49. No exploit is known to the project.Show less
CVE-2021-39860 1Adobe 4Acrobat Acrobat DcAcrobat Reader+1 more Jun 17, 2026 Sep 29, 2021 N/A· v4 5.5 MEDIUM· v3 4.3 MEDIUM· v2 Acrobat Pro DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Null pointer dereference vulnerability. An unauthenticated attacker could leverage thi...Show more Acrobat Pro DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Null pointer dereference vulnerability. An unauthenticated attacker could leverage this vulnerability to disclose sensitive user memory. Exploitation of this issue requires user interaction in that a victim must open a malicious file.Show less
CVE-2021-39854 1Adobe 4Acrobat Acrobat DcAcrobat Reader+1 more Jun 17, 2026 Sep 29, 2021 N/A· v4 5.5 MEDIUM· v3 4.3 MEDIUM· v2 Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Null pointer dereference vulnerability. An unauthenticated attacker could leverage...Show more Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Null pointer dereference vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.Show less
CVE-2021-39853 1Adobe 4Acrobat Acrobat DcAcrobat Reader+1 more Jun 17, 2026 Sep 29, 2021 N/A· v4 5.5 MEDIUM· v3 4.3 MEDIUM· v2 Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Null pointer dereference vulnerability. An unauthenticated attacker could leverage...Show more Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Null pointer dereference vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.Show less
CVE-2021-39852 1Adobe 4Acrobat Acrobat DcAcrobat Reader+1 more Jun 17, 2026 Sep 29, 2021 N/A· v4 5.5 MEDIUM· v3 4.3 MEDIUM· v2 Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Null pointer dereference vulnerability. An unauthenticated attacker could leverage...Show more Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Null pointer dereference vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.Show less
CVE-2021-39851 1Adobe 4Acrobat Acrobat DcAcrobat Reader+1 more Jun 17, 2026 Sep 29, 2021 N/A· v4 5.5 MEDIUM· v3 4.3 MEDIUM· v2 Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Null pointer dereference vulnerability. An unauthenticated attacker could leverage...Show more Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Null pointer dereference vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.Show less
CVE-2021-39850 1Adobe 4Acrobat Acrobat DcAcrobat Reader+1 more Jun 17, 2026 Sep 29, 2021 N/A· v4 5.5 MEDIUM· v3 4.3 MEDIUM· v2 Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Null pointer dereference vulnerability. An unauthenticated attacker could leverage...Show more Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Null pointer dereference vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.Show less
CVE-2021-39849 1Adobe 4Acrobat Acrobat DcAcrobat Reader+1 more Jun 17, 2026 Sep 29, 2021 N/A· v4 5.5 MEDIUM· v3 4.3 MEDIUM· v2 Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Null pointer dereference vulnerability. An unauthenticated attacker could leverage...Show more Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Null pointer dereference vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.Show less
CVE-2021-32987 1Aveva 1Suitelink Jun 17, 2026 Sep 23, 2021 N/A· v4 7.5 HIGH· v3 5.0 MEDIUM· v2 Null pointer dereference in SuiteLink server while processing command 0x0b
CVE-2021-32979 1Aveva 1Suitelink Jun 17, 2026 Sep 23, 2021 N/A· v4 7.5 HIGH· v3 5.0 MEDIUM· v2 Null pointer dereference in SuiteLink server while processing commands 0x04/0x0a
CVE-2021-32971 1Aveva 1Suitelink Jun 17, 2026 Sep 23, 2021 N/A· v4 7.5 HIGH· v3 5.0 MEDIUM· v2 Null pointer dereference in SuiteLink server while processing command 0x07
CVE-2021-32963 1Aveva 1Suitelink Jun 17, 2026 Sep 23, 2021 N/A· v4 7.5 HIGH· v3 5.0 MEDIUM· v2 Null pointer dereference in SuiteLink server while processing commands 0x03/0x10
CVE-2021-39598 1Swftools 1Swftools Jun 17, 2026 Sep 20, 2021 N/A· v4 5.5 MEDIUM· v3 4.3 MEDIUM· v2 An issue was discovered in swftools through 20200710. A NULL pointer dereference exists in the function callcode() located in code.c. It allows an attacker to cause Denial of Service.

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