CVE-2024-58311Public exploit

Card-key derivation via deterministic UID transformation

Published Dec 12, 2025 · Updated Dec 12, 2025

Predictable key generation in dormakaba Saflok System 6000 allows attackers to derive card access keys from a 32-bit UID. The key derivation routine builds a six-byte key from a computed magic byte and the four UID bytes, then adds bytes from a fixed 192-byte table with carry. Reading or otherwise obtaining a card UID is sufficient to derive its sector key and clone the card, but the key alone does not create arbitrary Saflok cards.

CVSS severity8.7
High
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Predictable key generation in dormakaba Saflok System 6000 allows attackers to derive card access keys from a 32-bit UID. The key derivation routine builds a six-byte key from a computed magic byte and the four UID bytes, then adds bytes from a fixed 192-byte table with carry. Reading or otherwise obtaining a card UID is sufficient to derive its sector key and clone the card, but the key alone does not create arbitrary Saflok cards.

The record

CVE
CVE-2024-58311
Published
Dec 12, 2025
Updated
Dec 12, 2025
Vendor
dormakaba
Product
Saflok System 6000
Classifications
CWE-1245, T1212
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 12, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 12, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Unknown

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

dormakaba · Saflok System 6000version=Unknown

Published CVSS scores

8.7VulnCheckCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.8VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-1245Improper Finite State Machines (FSMs) in Hardware Logic
T1212Exploitation for Credential Access

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo