How severe is CVE-2026-105133?

CVE-2026-105133 has a CVSS 3.1 base score of 7.3 (HIGH). EPSS estimates a 5.8% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2026-105133: Ahsay AhsayCBS API ApiStructsAction.java checkSysPwd

CISA Known Exploited Vulnerabilities

Ahsay AhsayCBS Improper Authentication Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2026-10-14

Remediation due

2026-10-17

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.

CISA notes
https://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

Description

A vulnerability was detected in Ahsay AhsayCBS up to 10.3.2. 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 10.3.4 is able to mitigate this issue. It is recommended to upgrade the affected component.

Severity

CVSS 4.0 · CNA6.9 MEDIUM

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:P

CVSS 3.1 · CNA7.3 HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C

CVSS 3.0 · CNA7.3 HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C

CVSS 2.0 · CNA7.5 HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C

SSVC · CISA-ADP

Exploitationactive

Automatableyes

Technical impactpartial

Exploitation Context

as of October 23, 2026

All KEV statistics→

CISA added CVE-2026-105133 to the KEV catalog 10 days after its CVE record was published. The median for entries added in 2026 so far is 14 days.
It is one of 2 Ahsay entries in the CISA KEV catalog, and one of 2 added in 2026.
Its current EPSS score (5.8%) is higher than that of 20% of CISA KEV entries.

Affected Products

Vendor	Product	Affected versions
Ahsay	Ahsay AhsayCBS	10.3.0 10.3.1 10.3.2 10.3.4 (unaffected)

References

5 Links

Patches

https://www.ahsay.com/en/support/help-centre/release-notes/cbs/v10.3.4

Third-party advisories

Technical writeups

VDB-413350 | Ahsay AhsayCBS API ApiStructsAction.java checkSysPwd improper authentication

Detection signatures

VDB-413350 | CTI Indicators (IOB, IOC, IOA)

Record Details

Published

2026-10-04

Last updated

2026-10-15

Assigner (CNA)

VulDB

Credited to

nickc (VulDB User); VulDB Vulnerability Moderation Team

More from Ahsay

CVE-2026-10513410 CRITICAL

Ahsay AhsayCBS Replication Receiver UpdateReceivers.do os command injection

AhsayKEVEPSS 38.3%2026-10-04

Tool categories

IAM Tools Application Security Tools

CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). Alert titles and links from CISA cybersecurity alerts. This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.

CVE-2026-105133