CVE-2024-29916Public exploit

Arbitrary door unlocking via forged keycards

Published Mar 21, 2024 · Updated Oct 19, 2024

Authentication bypass in dormakaba Saflok systems before the November 2023 update allows attackers to unlock doors with forged keycards. The card-key derivation function uses only the card UID, and weaknesses in secondary encryption protecting card data enable property-wide credential forgery. Physical access to one active or expired property card and a device that reads, writes, or emulates MIFARE Classic cards is required; the resulting card pair opens arbitrary doors.

CVSS severity5.6
Medium
EPSS probability0.32%
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

Authentication bypass in dormakaba Saflok systems before the November 2023 update allows attackers to unlock doors with forged keycards. The card-key derivation function uses only the card UID, and weaknesses in secondary encryption protecting card data enable property-wide credential forgery. Physical access to one active or expired property card and a device that reads, writes, or emulates MIFARE Classic cards is required; the resulting card pair opens arbitrary doors.

The record

CVE
CVE-2024-29916
Published
Mar 21, 2024
Updated
Oct 19, 2024
Vendor
dormakaba
Product
Saflok MT firmware
Classifications
CWE-407
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 21, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 19, 2024Record 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=0 <=*

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

dormakaba · Saflok MT firmwareversion=0 <=*
dormakaba · Quantum firmwareversion=0 <=*
dormakaba · Saffire firmwareversion=0 <=*
dormakaba · Confidant firmwareversion=0 <=*
dormakaba · Saflok RT firmwareversion=0 <=*

Published CVSS scores

5.6CISA-ADPCVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-407Inefficient Algorithmic Complexity

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