Root shell via unlocked UART bootloader
Published Jan 26, 2026 · Updated Jan 26, 2026
Authentication bypass in dormakaba Access Manager 92xx-K7 before BAME 06.00 allows physically proximate attackers to obtain a root shell. The exposed UART debug footprint enters an unlocked barebox bootloader, which accepts changes to global.linux.bootargs.dyn.root and boots /bin/sh as root. Exploitation requires enclosure access, 1.8 V UART equipment, and interruption of autoboot; the resulting shell has full device privileges.
Summary
What happened
Authentication bypass in dormakaba Access Manager 92xx-K7 before BAME 06.00 allows physically proximate attackers to obtain a root shell. The exposed UART debug footprint enters an unlocked barebox bootloader, which accepts changes to global.linux.bootargs.dyn.root and boots /bin/sh as root. Exploitation requires enclosure access, 1.8 V UART equipment, and interruption of autoboot; the resulting shell has full device privileges.
The record
- CVE
- CVE-2025-59104
- Published
- Jan 26, 2026
- Updated
- Jan 26, 2026
- Vendor
- dormakaba
- Product
- Access Manager 92xx
- Classifications
- CWE-1234, T1542.003
- Attack vector
- physical
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 26, 2026CVE publishedPublication date reported by the CVE source.
- Jan 26, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=92xx-k7: <BAME 06.00
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Weakness, pattern, technique
Public exploit references
- SEC Consult unlocked-bootloader proof of conceptfunctional · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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