CVE-2026-105133KEV · OVERDUECWE-287

Ahsay AhsayCBS Improper Authentication Vulnerability

High · published October 4, 2026

Patch now

Confirmed exploited, and the score agrees

CVSS calls it high at 7.3. It is confirmed in active exploitation. It sits in the 93.1th percentile for exploit probability.

7
days past CISA
deadline
CVSS v3.1
7.3
EPSS
6%
Percentile
93.1
In the wild
Confirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.3 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
6.9 · 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
EPSS
0.05794 · 93.1th percentile
Weakness
CWE-287 · Improper Authentication
Published
2026-10-04T11:16Z
KEV added
2026-10-14 · due 2026-10-17
Affected products (1)
ProductVersionsFixed in
ahsay/cloud_backup_suite< 10.3.410.3.4
References (6)
https://vuldb.com/cve/CVE-2026-105133 · [email protected]https://vuldb.com/submit/942688 · [email protected]https://vuldb.com/vuln/413350 · [email protected]https://vuldb.com/vuln/413350/cti · [email protected]https://www.ahsay.com/en/support/help-centre/release-notes/cbs/v10.3.4 · [email protected]https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-105133 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 15 OCT 03:28Z
    EPSS moved — → 0%
    epss
  • 04 OCT 05:15Z
    Ahsay AhsayCBS API ApiStructsAction.java checkSysPwd improper authentication
    cvelistv5
  • 04 OCT 05:15Z
    Ahsay AhsayCBS API ApiStructsAction.java checkSysPwd improper authentication
    cvelistv5