{"id":"CVE-2026-118527","aliases":["EUVD-2026-115872","GHSA-4hjv-6c7p-cpmq"],"status":"published","title":"Use of predictable filenames in Ivanti Connect Secure before versions 25.1.1.3 and 22.8R2.6...","description":"Use of predictable filenames in Ivanti Connect Secure before versions 25.1.1.3 and 22.8R2.6 allows a remote authenticated attacker to upload files with attacker-controlled content to a known location on disk.","severity":{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00822,"percentile":0.57798,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":false,"fix_available":false},"cwes":["CWE-340"],"published":"2026-11-03T14:53:28Z","modified":"2026-11-03T18:31:00Z","kev":{"date_added":"2026-10-30","due_date":"2026-11-13","required_action":"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","known_ransomware_use":"Unknown"},"exploitation":[{"source":"euvd","since":"2026-10-30"},{"source":"kev","since":"2026-10-30"}],"products":[{"vendor":"ivanti","product":"connect secure"},{"vendor":"ivanti","product":"connect_secure"}],"references":[{"url":"https://hub.ivanti.com/s/article/Security-Advisory-Ivanti-Connect-Secure-CVE-2026-104935?language=en_US","tags":["Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-118527","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-118527"},{"url":"https://github.com/advisories/GHSA-4hjv-6c7p-cpmq"}],"sources":{"cve":[{"id":"CVE-2026-118527","description":"Use of predictable filenames in Ivanti Connect Secure before versions 25.1.1.3 and 22.8R2.6 allows a remote authenticated attacker to upload files with attacker-controlled content to a known location on disk.","status":"published","published":"2026-11-03T14:53:28.232Z","modified":"2026-11-03T15:32:56.011Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-340"],"updated_at":"2026-11-03T16:58:09.635057Z"}],"euvd":[{"id":"EUVD-2026-115872","description":"Use of predictable filenames in Ivanti Connect Secure before versions 25.1.1.3 and 22.8R2.6 allows a remote authenticated attacker to upload files with attacker-controlled content to a known location on disk.","status":"published","published":"2026-11-03T14:53:28Z","modified":"2026-11-03T15:32:56Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"exploited_since":"2026-10-30","updated_at":"2026-11-03T18:19:05.216794Z"}],"ghsa":[{"id":"GHSA-4hjv-6c7p-cpmq","title":"Use of predictable filenames in Ivanti Connect Secure before versions 25.1.1.3 and 22.8R2.6...","description":"Use of predictable filenames in Ivanti Connect Secure before versions 25.1.1.3 and 22.8R2.6 allows a remote authenticated attacker to upload files with attacker-controlled content to a known location on disk.","status":"published","published":"2026-11-03T15:31:56Z","modified":"2026-11-03T18:31:00Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-340"],"updated_at":"2026-11-03T19:01:31.965978Z"}],"kev":[{"id":"CVE-2026-118527","title":"Ivanti Connect Secure Generation of Predictable Numbers or Identifiers Vulnerability","description":"Ivanti Connect Secure contains a generation of predictable numbers or identifiers vulnerability that allows a remote authenticated attacker to upload files with attacker-controlled content to a known location on disk. This vulnerability can be chained with CVE-2026-104935 and CVE-2026-111357.","cwes":["CWE-340"],"kev":{"date_added":"2026-10-30","due_date":"2026-11-13","required_action":"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","known_ransomware_use":"Unknown"},"updated_at":"2026-11-02T17:00:15.999436Z"}],"nvd":[{"id":"CVE-2026-118527","description":"Use of predictable filenames in Ivanti Connect Secure before versions 25.1.1.3 and 22.8R2.6 allows a remote authenticated attacker to upload files with attacker-controlled content to a known location on disk.","status":"published","published":"2026-11-03T15:17:24.92Z","modified":"2026-11-03T17:48:12.873Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-340"],"updated_at":"2026-11-03T20:18:19.129968Z"}]}}