7.5

CVE-2026-105133: Ahsay AhsayCBS Improper Authentication Vulnerability

KEV
Analyzed
Published 04-10-2026Last modified 26-10-2026

Vulnerability summary

CVE-2026-105133 is a high (CVSS 7.5) Improper Authentication vulnerability in Ahsay AhsayCBS. It is known to be exploited: CISA and ENISA list it, first on 14-10-2026. EPSS estimates a 79.47% chance of exploitation in the next 30 days, higher than 99.6% of scored vulnerabilities. 1 public exploit is recorded.

Priority
Act nowlisted as exploited

Listed as exploited by ENISA (23-10-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v2.0 (CVE.org)
EPSS score
79.47%
0%100%
Critical · Change unavailable
KEVExploited in the wildCritical · listed in 2 catalogs
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1reference

Timeline

  1. 04-10-2026
    PublishedVulnerability first disclosed.
  2. 14-10-2026
    Added to CISA KEVExploitedAhsay AhsayCBS Improper Authentication Vulnerability
  3. 17-10-2026
    CISA remediation dueDeadline passedApply mitigations per vendor instructions.
  4. 23-10-2026
    Added to ENISA KEVExploitedAdded to the ENISA known exploited vulnerabilities catalog.
  5. 26-10-2026
    Last modifiedVulnerability information updated.

Description

A vulnerability was detected in Ahsay AhsayCBS up to 9.15.2.69/10.3.4.44. 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 9.15.2.70 and 10.3.4.45 is able to mitigate this issue. It is recommended to upgrade the affected component. The initial patch did not fix the security vulnerability properly. An update of the CVE entry to reflect this became necessary.

CVSS metrics

7 scores · 2 sources · 4 versions

EPSS trend

Probability

79.47%

Chance of exploitation in the next 30 days

Percentile

100%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

04-10-202628-10-2026

Known exploited

Compare KEV catalogs
CISA KEVListed
Added
14-10-2026
Federal due date
17-10-2026
ENISA CNWListed
Added
23-10-2026
CIRCL

Not in the CIRCL catalog.

CISA 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. www.ahsay.com/en/company/announcements/patch-cve-105133-105134-update nvd.nist.gov/vuln/detail/CVE-2026-105133

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (huntress.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ahsay2 products
  • ahsaycbs9.15.2.0 | 9.15.2.1 | 9.15.2.2 | 9.15.2.3 | 9.15.2.4 | 9.15.2.5 | 9.15.2.6 | 9.15.2.7 | 9.15.2.8 | 9.15.2.9 | 9.15.2.10 | 9.15.2.11 | 9.15.2.12 | 9.15.2.13 | 9.15.2.14 | 9.15.2.15 | 9.15.2.16 | 9.15.2.17 | 9.15.2.18 | 9.15.2.19 | 9.15.2.20 | 9.15.2.21 | 9.15.2.22 | 9.15.2.23 | 9.15.2.24 | 9.15.2.25 | 9.15.2.26 | 9.15.2.27 | 9.15.2.28 | 9.15.2.29 | 9.15.2.30 | 9.15.2.31 | 9.15.2.32 | 9.15.2.33 | 9.15.2.34 | 9.15.2.35 | 9.15.2.36 | 9.15.2.37 | 9.15.2.38 | 9.15.2.39 | 9.15.2.40 | 9.15.2.41 | 9.15.2.42 | 9.15.2.43 | 9.15.2.44 | 9.15.2.45 | 9.15.2.46 | 9.15.2.47 | 9.15.2.48 | 9.15.2.49 | 9.15.2.50 | 9.15.2.51 | 9.15.2.52 | 9.15.2.53 | 9.15.2.54 | 9.15.2.55 | 9.15.2.56 | 9.15.2.57 | 9.15.2.58 | 9.15.2.59 | 9.15.2.60 | 9.15.2.61 | 9.15.2.62 | 9.15.2.63 | 9.15.2.64 | 9.15.2.65 | 9.15.2.66 | 9.15.2.67 | 9.15.2.68 | 9.15.2.69 | 10.3.4.0 | 10.3.4.1 | 10.3.4.2 | 10.3.4.3 | 10.3.4.4 | 10.3.4.5 | 10.3.4.6 | 10.3.4.7 | 10.3.4.8 | 10.3.4.9 | 10.3.4.10 | 10.3.4.11 | 10.3.4.12 | 10.3.4.13 | 10.3.4.14 | 10.3.4.15 | 10.3.4.16 | 10.3.4.17 | 10.3.4.18 | 10.3.4.19 | 10.3.4.20 | 10.3.4.21 | 10.3.4.22 | 10.3.4.23 | 10.3.4.24 | 10.3.4.25 | 10.3.4.26 | 10.3.4.27 | 10.3.4.28 | 10.3.4.29 | 10.3.4.30 | 10.3.4.31 | 10.3.4.32 | 10.3.4.33 | 10.3.4.34 | 10.3.4.35 | 10.3.4.36 | 10.3.4.37 | 10.3.4.38 | 10.3.4.39 | 10.3.4.40 | 10.3.4.41 | 10.3.4.42 | 10.3.4.43 | 10.3.4.44
  • cloud_backup_suite< 10.3.4 | < 9.15.2.70 | ≥ 10.1.0, < 10.3.4.45

1 vendor · 2 products

References

8 links