https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Sun, 04 Oct 2026 15:32:50 +0000 https://vulnerability.circl.lu/vuln/cve-2026-21901 <p><strong>Affected:</strong> Juniper Networks Junos OS, Juniper Networks Junos OS Evolved</p> <p>A NULL Pointer Dereference vulnerability in the management daemon (mgd) of Juniper Networks Junos OS and Junos OS Evolved allows a local, high-privileged attacker setting or deactivating a specific SSH configuration parameter to create a Denial of Service (DoS).</p> <p>A local high-privileged user configuring or deactivating a specific &#39;system services ssh&#39; configuration parameter can exploit a null pointer dereference in one of the functions used by SSH. The function attempts to dereference a null pointer when accessing certain configuration data, resulting in an mgd process crash and restart. Continued execution of these configuration commands will create a sustained Denial of Service (DoS) condition.</p> <p>This issue affects: Junos OS:</p> <p>* from 22.3 before 22.3R3-S5; * from 22.4 before 22.4R3-S10; * from 23.2 before 23.2R2-S7; * from 23.4 before 23.4R2-S8.</p> <p>This issue does not affect Junos OS before 22.3R1.</p> <p>Junos OS Evolved: * from 22.3R1-EVO before 23.2R2-S7-EVO; * from 23.4 before 23.4R2-S8-EVO.</p> <p>This issue does not affect Junos OS Evolved before 22.3R1-EVO.</p> <p><strong>Affected:</strong> Juniper Networks Junos OS, Juniper Networks Junos OS Evolved</p> <p>A NULL Pointer Dereference vulnerability in the management daemon (mgd) of Juniper Networks Junos OS and Junos OS Evolved allows a local, high-privileged attacker setting or deactivating a specific SSH configuration parameter to create a Denial of Service (DoS).</p> <p>A local high-privileged user configuring or deactivating a specific &#39;system services ssh&#39; configuration parameter can exploit a null pointer dereference in one of the functions used by SSH. The function attempts to dereference a null pointer when accessing certain configuration data, resulting in an mgd process crash and restart. Continued execution of these configuration commands will create a sustained Denial of Service (DoS) condition.</p> <p>This issue affects: Junos OS:</p> <p>* from 22.3 before 22.3R3-S5; * from 22.4 before 22.4R3-S10; * from 23.2 before 23.2R2-S7; * from 23.4 before 23.4R2-S8.</p> <p>This issue does not affect Junos OS before 22.3R1.</p> <p>Junos OS Evolved: * from 22.3R1-EVO before 23.2R2-S7-EVO; * from 23.4 before 23.4R2-S8-EVO.</p> <p>This issue does not affect Junos OS Evolved before 22.3R1-EVO.</p> https://vulnerability.circl.lu/vuln/cve-2026-21901