CVE-2025-59095

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

State
Published
Severity
6.8 Medium
Published
Jan 26, 2026
Updated
Jan 26, 2026
Reserved
Sep 9, 2025

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
4.06.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:NSEC-VLab

Weaknesses

  • CWE-798 Use of Hard-coded Credentials

Affected Products

ProductVersions
Kaba exos 9300dormakaba
  • <4.3.3Affected

References

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