Which products and versions are affected by CVE-2026-105134?

Affected: AhsayCBS; Cloud Backup Suite (Ahsay). The full list is in the CVE brief.

Is CVE-2026-105134 being exploited in the wild?

It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Oct 9, 2026.

Is CVE-2026-105134 in the CISA KEV catalog?

Yes. It was added on Oct 14, 2026 with a federal remediation due date of Oct 17, 2026.

Is there a public exploit for CVE-2026-105134?

Public exploit code is available.

Is there a fix for CVE-2026-105134?

Fixed versions are available, including Cloud Backup Suite 10.3.4.

How urgently should CVE-2026-105134 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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Vulnerability Intelligence

CVE-2026-105134

CriticalExploitedPublic exploit

Ahsay AhsayCBS Replication Receiver UpdateReceivers.do os command injection

Published Oct 4, 2026 · Updated Oct 15, 2026 · Also known as EUVD-2026-92078, GHSA-mxj3-2x8q-2rh9

Key Facts

Patch immediately

CVE-2026-105134 is a critical-severity vulnerability (CVSS 10.0 v4) affecting AhsayCBS, Cloud Backup Suite (Ahsay).
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Oct 9, 2026. Public exploit code is available.
EPSS estimates a 4.8% probability of exploitation in the next 30 days.
Fixed versions are available, including Cloud Backup Suite 10.3.4.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v4

10.0

CVSS: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:P

EPSS (30-day exploit likelihood)

4.8%

Exploited in the wild

Yes

4 catalog listings

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2026-105134 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

A flaw has been found in Ahsay AhsayCBS up to 10.3.2. 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 10.3.4 is able to resolve this issue. Upgrading the affected component is advised.

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
CISA KEV	Oct 14, 2026	Oct 17, 2026	Not reported
Industry KEV feed	Oct 9, 2026	Oct 17, 2026	Not reported
CIRCL KEV	Oct 9, 2026	Oct 17, 2026	Not reported
ENISA EUVD	Oct 14, 2026	n/a	Not reported

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.

Affected Products

3 affected entries in total

Product	Affected versions	Fixed in
AhsayCBSAhsay	See advisory	n/a
Cloud Backup SuiteAhsay	See advisory	10.3.4

Patched Releases

Cloud Backup Suite

10.3.4

Timeline

Publicly disclosed
Oct 4, 2026
Added to Industry KEV feed
Oct 9, 2026
Added to CIRCL KEV
Oct 9, 2026
Added to CISA KEV
Oct 14, 2026
Added to ENISA EUVD
Oct 14, 2026
Last updated
Oct 15, 2026

Weakness Type

CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

References

3 more references in the full CVE brief

FAQ

Common Questions.

A flaw has been found in Ahsay AhsayCBS up to 10.3.2.
Affected: AhsayCBS; Cloud Backup Suite (Ahsay). The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Oct 9, 2026.
Yes. It was added on Oct 14, 2026 with a federal remediation due date of Oct 17, 2026.
Public exploit code is available.
Fixed versions are available, including Cloud Backup Suite 10.3.4.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Is CVE-2026-105134 Running On Your Attack Surface?

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