CRITICAL · CVSS 10.0
ACTIVELY EXPLOITED
PATCH AVAILABLE
CVE-2026-105134: Ahsay AhsayCBS Command Injection Vulnerability
| Vendor | Ahsay |
|---|---|
| Product | AhsayCBS |
| CVSS score | 10.0 · CVSS 4.0 · CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| EPSS | 81.8% (percentile 100) |
| Actively exploited | Yes |
| Added to CISA KEV | 14 Oct 2026 |
| CISA federal deadline | 17 Oct 2026 |
| Weakness (CWE) | CWE-77, CWE-78 |
| NVD published | 4 Oct 2026 |
| NVD last modified | 26 Oct 2026 |
| NVD status | Analyzed |
Affected versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Ahsay Cloud Backup Suite | from 10.1.0 before 10.3.4.45 | 10.3.4.45 |
| Ahsay Cloud Backup Suite | before 9.15.2.70 | 9.15.2.70 |
Required action (CISA's text)
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.
Description (NVD)
A flaw has been found in Ahsay AhsayCBS up to 9.15.2.69/10.3.4.44. This vulnerability affects unknown code of the file /rps/api/json/UpdateReceivers.do of the component Replication Receiver. Executing a manipulation of the argument random can lead to os command injection. It is possible to launch the attack remotely. The exploit has been published and may be used. Upgrading to version 9.15.2.70 and 10.3.4.45 is able to resolve this issue. Upgrading the affected component is advised. The initial patch did not fix the security vulnerability properly. An update of the CVE entry to reflect this became necessary.
SOURCES
Other Ahsay flaws
Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 26 Oct 2026.