{"id":"CVE-2023-36846","aliases":[],"url":"https://o3.security/vulnerability/CVE-2023-36846","summary":"A Missing Authentication for Critical Function vulnerability in Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause limited impact to…","details":"A Missing Authentication for Critical Function vulnerability in Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause limited impact to the file system integrity.\n\n\n\nWith a specific request to user.php that doesn't require authentication an attacker is able to upload arbitrary files via J-Web, leading to a loss of \n\nintegrity\n\nfor a certain \n\npart of the file system, which may allow chaining to other vulnerabilities.\n\n\nThis issue affects Juniper Networks Junos OS on SRX Series:\n\n\n\n  *  All versions prior to 20.4R3-S8;\n  *  21.1 versions 21.1R1 and later;\n  *  21.2 versions prior to 21.2R3-S6;\n  *  21.3 versions \n\nprior to \n\n 21.3R3-S5;\n  *  21.4 versions \n\nprior to \n\n21.4R3-S5;\n  *  22.1 versions \n\nprior to \n\n22.1R3-S3;\n  *  22.2 versions \n\nprior to \n\n22.2R3-S2;\n  *  22.3 versions \n\nprior to \n\n22.3R2-S2, 22.3R3;\n  *  22.4 versions \n\nprior to \n\n22.4R2-S1, 22.4R3.","published":"2023-08-17T20:15:10.457","modified":"2026-06-17T06:07:12.957","cvss":{"score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"},"epss":{"score":0.95101,"percentile":0.99858,"asOf":"2026-09-05"},"cisaKev":null,"exploitsKnown":4,"affectedPackages":[],"fix":null,"references":[{"type":"ADVISORY","url":"https://supportportal.juniper.net/JSA72300"},{"type":"ADVISORY","url":"https://supportportal.juniper.net/JSA72300"},{"type":"WEB","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-36846"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-06-17T06:07:12.957"}}