CVE-2025-59095

Hard-coded Key for PIN Encryption in dormakaba Kaba exos 9300

MEDIUM
6.8
CVSS Score
Published: January 26, 2026 at 10:04 AM UTC
Updated: June 17, 2026 at 09:45 AM UTC
1 product affected across 1 vendorKaba exos 9300

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Severity
MEDIUM6.8
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

Description

The program libraries (DLL) and binaries used by exos 9300 contain multiple hard-coded secrets. One notable example is the function "EncryptAndDecrypt" in the library Kaba.EXOS.common.dll. This algorithm uses a simple XOR encryption technique combined with a cryptographic key (cryptoKey) to transform each character of the input string. However, it's important to note that this implementation does not provide strong encryption and should not be considered secure for sensitive data. It's more of a custom encryption approach rather than a common algorithm used in cryptographic applications. The key itself is static and based on the founder's name of the company. The functionality is for example used to encrypt the user PINs before storing them in the MSSQL database.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 4.3.3
Affected range stops below 4.3.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

Third Party Advisory
Source: 551230f0-3615-47bd-b7cc-93e92e730bbf
https://r.sec-consult.com/dkexos
Technical Description
Source: 551230f0-3615-47bd-b7cc-93e92e730bbf
https://r.sec-consult.com/dormakaba
Vendor Advisory
Source: 551230f0-3615-47bd-b7cc-93e92e730bbf
https://www.dormakabagroup.com/en/security-advisories

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.8MEDIUMSEC-VLab
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-798

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