{"id":"CVE-2023-36845","aliases":[],"url":"https://o3.security/vulnerability/CVE-2023-36845","summary":"A PHP External Variable Modification vulnerability in J-Web of Juniper Networks Junos OS on EX Series \n\nand SRX Series \n\nallows an unauthenticated, network-based attacker to remotely…","details":"A PHP External Variable Modification vulnerability in J-Web of Juniper Networks Junos OS on EX Series \n\nand SRX Series \n\nallows an unauthenticated, network-based attacker to remotely execute code.\n\nUsing a crafted request which sets the variable PHPRC an attacker is able to modify the PHP execution environment allowing the injection und execution of code.\n\n\nThis issue affects Juniper Networks Junos OS on EX Series\n\n\nand \n\n\nSRX Series:\n\n\n\n  *  All versions prior to \n\n20.4R3-S9;\n  *  21.1 versions 21.1R1 and later;\n  *  21.2 versions prior to 21.2R3-S7;\n  *  21.3 versions prior to 21.3R3-S5;\n  *  21.4 versions prior to 21.4R3-S5;\n  *  22.1 versions \n\nprior to \n\n22.1R3-S4;\n  *  22.2 versions \n\nprior to \n\n22.2R3-S2;\n  *  22.3 versions \n\nprior to \n\n22.3R2-S2, 22.3R3-S1;\n  *  22.4 versions \n\nprior to \n\n22.4R2-S1, 22.4R3;\n  *  23.2 versions prior to 23.2R1-S1, 23.2R2.","published":"2023-08-17T19:17:57.183Z","modified":"2025-10-21T23:05:40.639Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":{"score":0.94265,"percentile":0.99842,"asOf":"2026-08-25"},"cisaKev":{"dateAdded":"2023-11-13","dueDate":"2023-11-17","knownRansomwareCampaignUse":false},"exploitsKnown":16,"affectedPackages":[],"fix":null,"references":[{"type":"ADVISORY","url":"https://supportportal.juniper.net/JSA72300"},{"type":"WEB","url":"http://packetstormsecurity.com/files/174865/Juniper-SRX-Firewall-EX-Switch-Remote-Code-Execution.html"},{"type":"WEB","url":"http://packetstormsecurity.com/files/176969/Juniper-SRX-Firewall-EX-Switch-Remote-Code-Execution.html"},{"type":"WEB","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-36845"}],"provenance":{"sources":["OSV.dev","NVD","CISA KEV","FIRST.org (EPSS)"],"lastVerified":"2025-10-21T23:05:40.639Z"}}