{"id":"CVE-2026-105133","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-105133","generatedAt":"2026-10-28T10:47:54.245Z","title":"Ahsay AhsayCBS Improper Authentication Vulnerability","description":"A vulnerability was detected in Ahsay AhsayCBS up to 9.15.2.69/10.3.4.44. This affects the function checkSysPwd of the file com/ahsay/obs/api/ApiStructsAction.java of the component API. Performing a manipulation of the argument random results in improper authentication. It is possible to initiate the attack remotely. The exploit is now public and may be used. Upgrading to version 9.15.2.70 and 10.3.4.45 is able to mitigate this issue. It is recommended to upgrade the affected component. The initial patch did not fix the security vulnerability properly. An update of the CVE entry to reflect this became necessary.","published":"2026-10-04T07:16:33.000Z","lastModified":"2026-10-26T18:07:09.000Z","status":"Analyzed","sourceIdentifier":"cna@vuldb.com","cvss":{"version":"4.0","score":6.9,"severity":"MEDIUM","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:A/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-287"],"affected":["ahsay/cloud backup suite"],"epss":{"score":0.7947,"percentile":0.99601,"date":"2026-10-27","history":[{"date":"2026-10-04","score":0.00383,"percentile":0.30028},{"date":"2026-10-22","score":0.05794,"percentile":0.93092},{"date":"2026-10-25","score":0.79236,"percentile":0.99595}]},"kev":{"listed":true,"dateAdded":"2026-10-14","dueDate":"2026-10-17","knownRansomwareCampaignUse":"Unknown","notes":"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.\nhttps://www.ahsay.com/en/company/announcements/patch-cve-105133-105134-update ; ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-105133"},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"Known to be exploited in the wild (CISA KEV, CISA remediation deadline 17 October 2026). Treat as an emergency change: patch or isolate now, then hunt for prior compromise."},"changes":[{"kind":"scored","label":"Newly scored","at":"2026-10-26T15:30:33.000Z","detail":{"from":"5.5","score":"6.9","severity":"MEDIUM","fromSeverity":"MEDIUM"},"summary":"Now scored CVSS 6.9 MEDIUM (was 5.5)."},{"kind":"epss","label":"EPSS jump","at":"2026-10-25T00:00:00.000Z","detail":{"to":0.79236,"from":0.05794,"percentile":0.99595},"summary":"EPSS moved from 5.8% to 79.2% probability of exploitation in the next thirty days."},{"kind":"kev","label":"Added to KEV","at":"2026-10-14T00:00:00.000Z","detail":{"name":"Ahsay AhsayCBS Improper Authentication Vulnerability","vendor":"Ahsay","dueDate":"2026-10-17","product":"AhsayCBS","ransomware":"Unknown"},"summary":"Added to CISA KEV — known to be exploited; federal remediation due 2026-10-17."},{"kind":"new","label":"New CVE","at":"2026-10-04T07:16:33.000Z","detail":{"score":"5.5","severity":"MEDIUM","publishedAt":"2026-10-04T07:16:33.087Z"},"summary":"New CVE, medium severity (CVSS 6.9), EPSS 79.5%."}],"references":[{"url":"https://vuldb.com/cve/CVE-2026-105133","tags":["Third Party Advisory","VDB Entry"],"source":"cna@vuldb.com"},{"url":"https://vuldb.com/submit/942688","tags":["Third Party Advisory","VDB Entry"],"source":"cna@vuldb.com"},{"url":"https://vuldb.com/vuln/413350","tags":["Third Party Advisory","VDB Entry"],"source":"cna@vuldb.com"},{"url":"https://vuldb.com/vuln/413350/cti","tags":["Permissions Required","VDB Entry"],"source":"cna@vuldb.com"},{"url":"https://www.ahsay.com/en/company/announcements/patch-cve-105133-105134-update","tags":["Vendor Advisory"],"source":"cna@vuldb.com"},{"url":"https://www.huntress.com/blog/ahsaycbs-flaws-exploit","tags":["Third Party Advisory"],"source":"cna@vuldb.com"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-105133","tags":["US Government Resource"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-105133","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}