CVE-2026-105134
Ahsay AhsayCBS Replication Receiver UpdateReceivers.do os command injection
- Critical 10.0
- Exploited: added to CISA KEV 14 Oct 2026
- A public exploit reference is listed
Description
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.
Key facts
- Published
- 4 Oct 2026
- Last changed
- 26 Oct 2026
- Assigned by
- VulDB
- KEV added
- 14 Oct 2026
- KEV fix due
- 17 Oct 2026
- EPSS
- 81.763% likely to be exploited in the next 30 days, higher than 99.653% of CVEs (scores for 15 Nov 2026)
- SSVC (CISA)
- Exploitation: active; Automatable: yes; Technical impact: total
Severity scores
Each score is shown as its source gave it. They are not averaged or merged.
- 10.0CVSS 4.0, Criticalfrom the CNA (VulDB)
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:A - 10.0CVSS 3.1, Criticalfrom the CNA (VulDB)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C - 10.0CVSS 3.0, Criticalfrom the CNA (VulDB)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C - 10.0CVSS 2.0, Highfrom the CNA (VulDB)
AV:N/AC:L/Au:N/C:C/I:C/A:C/E:H/RL:OF/RC:C
What to do
- 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.CISA KEV required action
Historical context and remediation
This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.
No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.
Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Ahsay | AhsayCBS |
|
Timeline
- 3 Oct 2026 Advisory disclosed
- 3 Oct 2026 VulDB entry created
- 4 Oct 2026 Published
- 14 Oct 2026 CVE-2026-105134 added to CISA KEV
- 14 Oct 2026 Added to the CISA KEV catalogue
- 26 Oct 2026 VulDB entry last update
Weakness
Practice this bug class
HackZoneLabs has a hands-on lab on OS command injection (CWE-78).
References
- VDB-413351 | Ahsay AhsayCBS Replication Receiver UpdateReceivers.do os command injection
- VDB-413351 | CTI Indicators (IOB, IOC, TTP, IOA)
- CVE-2026-105134 | CVE Analysis and Report
- Submit #942743 | Ahsay Systems Corporation Limited Ahsay CBS 10.3.0 Remote Code Execution via Arbitrary File Write
- www.ahsay.com
- www.huntress.com