Filtered by CWE-476
Total 4221 CVE
CVE Vendors Products Updated CVSS v3.1
CVE-2021-29296 1 Dlink 2 Dir-825, Dir-825 Firmware 2024-11-21 7.5 High
Null Pointer Dereference vulnerability in D-Link DIR-825 2.10b02, which could let a remote malicious user cause a denial of service. The vulnerability could be triggered by sending an HTTP request with URL /vct_wan; the sbin/httpd would invoke the strchr function and take NULL as a first argument, which finally leads to the segmentation fault. NOTE: The DIR-825 and all hardware revisions is considered End of Life and as such this issue will not be patched
CVE-2021-29295 1 Dlink 2 Dsp-w215, Dsp-w215 Firmware 2024-11-21 7.5 High
Null Pointer Dereference vulnerability exists in D-Link DSP-W215 1.10, which could let a remote malicious user cause a denial of servie via usr/bin/lighttpd. It could be triggered by sending an HTTP request without URL in the start line directly to the device. NOTE: The DSP-W215 and all hardware revisions is considered End of Life and as such this issue will not be patched
CVE-2021-29294 1 Dlink 2 Dsl-2740r, Dsl-2740r Firmware 2024-11-21 7.5 High
Null Pointer Dereference vulnerability exists in D-Link DSL-2740R UK_1.01, which could let a remove malicious user cause a denial of service via the send_hnap_unauthorized function. It could be triggered by sending crafted POST request to /HNAP1/. NOTE: The DSL-2740R and all hardware revisions are considered End of Life and as such this issue will not be patched
CVE-2021-29258 2 Envoyproxy, Redhat 2 Envoy, Service Mesh 2024-11-21 7.5 High
An issue was discovered in Envoy 1.14.0. There is a remotely exploitable crash for HTTP2 Metadata, because an empty METADATA map triggers a Reachable Assertion.
CVE-2021-29241 1 Codesys 11 Control For Beaglebone Sl, Control For Empc-a\/imx6 Sl, Control For Iot2000 Sl and 8 more 2024-11-21 7.5 High
CODESYS Gateway 3 before 3.5.16.70 has a NULL pointer dereference that may result in a denial of service (DoS).
CVE-2021-28971 5 Debian, Fedoraproject, Linux and 2 more 10 Debian Linux, Fedora, Linux Kernel and 7 more 2024-11-21 5.5 Medium
In intel_pmu_drain_pebs_nhm in arch/x86/events/intel/ds.c in the Linux kernel through 5.11.8 on some Haswell CPUs, userspace applications (such as perf-fuzzer) can cause a system crash because the PEBS status in a PEBS record is mishandled, aka CID-d88d05a9e0b6.
CVE-2021-28906 1 Cesnet 1 Libyang 2024-11-21 7.5 High
In function read_yin_leaf() in libyang <= v1.0.225, it doesn't check whether the value of retval->ext[r] is NULL. In some cases, it can be NULL, which leads to the operation of retval->ext[r]->flags that results in a crash.
CVE-2021-28905 1 Cesnet 1 Libyang 2024-11-21 7.5 High
In function lys_node_free() in libyang <= v1.0.225, it asserts that the value of node->module can't be NULL. But in some cases, node->module can be null, which triggers a reachable assertion (CWE-617).
CVE-2021-28904 1 Cesnet 1 Libyang 2024-11-21 7.5 High
In function ext_get_plugin() in libyang <= v1.0.225, it doesn't check whether the value of revision is NULL. If revision is NULL, the operation of strcmp(revision, ext_plugins[u].revision) will lead to a crash.
CVE-2021-28902 1 Cesnet 1 Libyang 2024-11-21 7.5 High
In function read_yin_container() in libyang <= v1.0.225, it doesn't check whether the value of retval->ext[r] is NULL. In some cases, it can be NULL, which leads to the operation of retval->ext[r]->flags that results in a crash.
CVE-2021-28855 1 Entropymine 1 Deark 2024-11-21 5.5 Medium
In Deark before 1.5.8, a specially crafted input file can cause a NULL pointer dereference in the dbuf_write function (src/deark-dbuf.c).
CVE-2021-28845 1 Trendnet 8 Tew-755ap, Tew-755ap2kac, Tew-755ap2kac Firmware and 5 more 2024-11-21 7.5 High
Null Pointer Dereference vulnerability exists in TRENDnet TEW-755AP 1.11B03, TEW-755AP2KAC 1.11B03, TEW-821DAP2KAC 1.11B03, and TEW-825DAP 1.11B03, which could let a remote malicious user cause a denial of service by sending the POST request to apply_cgi via the lang action without a language key.
CVE-2021-28844 1 Trendnet 8 Tew-755ap, Tew-755ap2kac, Tew-755ap2kac Firmware and 5 more 2024-11-21 7.5 High
Null Pointer Dereference vulnerability exists in TRENDnet TEW-755AP 1.11B03, TEW-755AP2KAC 1.11B03, TEW-821DAP2KAC 1.11B03, and TEW-825DAP 1.11B03 by sending the POST request to apply_cgi via a do_graph_auth action without a session_id key.
CVE-2021-28843 1 Trendnet 8 Tew-755ap, Tew-755ap2kac, Tew-755ap2kac Firmware and 5 more 2024-11-21 7.5 High
Null Pointer Dereference vulnerability exists in TRENDnet TEW-755AP 1.11B03, TEW-755AP2KAC 1.11B03, TEW-821DAP2KAC 1.11B03, and TEW-825DAP 1.11B03 by sending the POST request to apply_cgi with an unknown action name.
CVE-2021-28842 1 Trendnet 8 Tew-755ap, Tew-755ap2kac, Tew-755ap2kac Firmware and 5 more 2024-11-21 7.5 High
Null Pointer Deference vulnerability exists in TRENDnet TEW-755AP 1.11B03, TEW-755AP2KAC 1.11B03, TEW-821DAP2KAC 1.11B03, and TEW-825DAP 1.11B03, which could let a remote malicious user cause a denial os service by sending the POST request to apply_cgi via action do_graph_auth without login_name key.
CVE-2021-28841 1 Trendnet 8 Tew-755ap, Tew-755ap2kac, Tew-755ap2kac Firmware and 5 more 2024-11-21 7.5 High
Null Pointer Dereference vulnerability in TRENDnet TEW-755AP 1.11B03, TEW-755AP2KAC 1.11B03, TEW-821DAP2KAC 1.11B03, and TEW-825DAP 1.11B03, which could let a remote malicious user cause a denial of service by sending a POST request to apply_cgi via an action ping_test without a ping_ipaddr key.
CVE-2021-28840 1 Dlink 18 Dap-2310, Dap-2310 Firmware, Dap-2330 and 15 more 2024-11-21 7.5 High
Null Pointer Dereference vulnerability exists in D-Link DAP-2310 2.07.RC031, DAP-2330 1.07.RC028, DAP-2360 2.07.RC043, DAP-2553 3.06.RC027, DAP-2660 1.13.RC074, DAP-2690 3.16.RC100, DAP-2695 1.17.RC063, DAP-3320 1.01.RC014 and DAP-3662 1.01.RC022 in the upload_config function of sbin/httpd binary. When the binary handle the specific HTTP GET request, the content in upload_file variable is NULL in the upload_config function then the strncasecmp would take NULL as first argument, and incur the NULL pointer dereference vulnerability.
CVE-2021-28839 1 Dlink 18 Dap-2310, Dap-2310 Firmware, Dap-2330 and 15 more 2024-11-21 7.5 High
Null Pointer Dereference vulnerability exists in D-Link DAP-2310 2.07.RC031, DAP-2330 1.07.RC028, DAP-2360 2.07.RC043, DAP-2553 3.06.RC027, DAP-2660 1.13.RC074, DAP-2690 3.16.RC100, DAP-2695 1.17.RC063, DAP-3320 1.01.RC014 and DAP-3662 1.01.RC022 in the upload_certificate function of sbin/httpd binary. When the binary handle the specific HTTP GET request, the strrchr in the upload_certificate function would take NULL as first argument, and incur the NULL pointer dereference vulnerability.
CVE-2021-28838 1 Dlink 18 Dap-2310, Dap-2310 Firmware, Dap-2330 and 15 more 2024-11-21 7.5 High
Null pointer dereference vulnerability in D-Link DAP-2310 2,10RC039, DAP-2330 1.10RC036 BETA, DAP-2360 2.10RC055, DAP-2553 3.10rc039 BETA, DAP-2660 1.15rc131b, DAP-2690 3.20RC115 BETA, DAP-2695 1.20RC093, DAP-3320 1.05RC027 BETA and DAP-3662 1.05rc069 in the sbin/httpd binary. The crash happens at the `atoi' operation when a specific network package are sent to the httpd binary.
CVE-2021-28683 2 Envoyproxy, Redhat 2 Envoy, Service Mesh 2024-11-21 7.5 High
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.