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    <lastBuildDate>Wed, 07 Oct 2026 13:52:33 +0000</lastBuildDate>
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      <title>CVE-2025-21596 — Junos OS: SRX1500,SRX4100,SRX4200: Execution of low-privileged CLI command results in chassisd crash</title>
      <link>https://cve.radiocsirt.org/vuln/cve-2025-21596</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Juniper Networks Junos OS&lt;/p&gt;
&lt;p&gt;An Improper Handling of Exceptional Conditions vulnerability in the command-line processing of Juniper Networks Junos OS on SRX1500, SRX4100, and SRX4200 devices allows a local, low-privileged authenticated attacker executing the &amp;#39;show chassis environment pem&amp;#39; command to cause the chassis daemon (chassisd) to crash and restart, resulting in a temporary Denial of Service (DoS). However, repeated execution of this command will eventually cause the chassisd process to fail to restart, impacting packet processing on the system.&lt;/p&gt;
&lt;p&gt;This issue affects Junos OS on SRX1500, SRX4100, SRX4200:&lt;/p&gt;
&lt;p&gt;*  All versions before 21.4R3-S9, 
  *  from 22.2 before 22.2R3-S5, 
  *  from 22.3 before 22.3R3-S4, 
  *  from 22.4 before 22.4R3-S4, 
  *  from 23.2 before 23.2R2-S3, 
  *  from 23.4 before 23.4R2-S1.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Juniper Networks Junos OS&lt;/p&gt;
&lt;p&gt;An Improper Handling of Exceptional Conditions vulnerability in the command-line processing of Juniper Networks Junos OS on SRX1500, SRX4100, and SRX4200 devices allows a local, low-privileged authenticated attacker executing the &amp;#39;show chassis environment pem&amp;#39; command to cause the chassis daemon (chassisd) to crash and restart, resulting in a temporary Denial of Service (DoS). However, repeated execution of this command will eventually cause the chassisd process to fail to restart, impacting packet processing on the system.&lt;/p&gt;
&lt;p&gt;This issue affects Junos OS on SRX1500, SRX4100, SRX4200:&lt;/p&gt;
&lt;p&gt;*  All versions before 21.4R3-S9, 
  *  from 22.2 before 22.2R3-S5, 
  *  from 22.3 before 22.3R3-S4, 
  *  from 22.4 before 22.4R3-S4, 
  *  from 23.2 before 23.2R2-S3, 
  *  from 23.4 before 23.4R2-S1.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://cve.radiocsirt.org/vuln/cve-2025-21596</guid>
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