CRITICAL · CVSS 10.0 ACTIVELY EXPLOITED PATCH AVAILABLE

CVE-2026-105134: Ahsay AhsayCBS Command Injection Vulnerability

Facts
VendorAhsay
ProductAhsayCBS
CVSS score10.0 · 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
EPSS81.8% (percentile 100)
Actively exploitedYes
Added to CISA KEV14 Oct 2026
CISA federal deadline17 Oct 2026
Weakness (CWE)CWE-77, CWE-78
NVD published4 Oct 2026
NVD last modified26 Oct 2026
NVD statusAnalyzed

Affected versions

ProductAffected versionsFixed in
Ahsay Cloud Backup Suitefrom 10.1.0 before 10.3.4.4510.3.4.45
Ahsay Cloud Backup Suitebefore 9.15.2.709.15.2.70

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.