Firmware decryption via hard-coded encryption seed
Published Dec 24, 2024 · Updated Oct 1, 2025
Use of a hard-coded encryption seed in Hanwha Vision XRN-420S 5.01.62 and earlier allows local users to reproduce the firmware decryption key. The firmware encryption design derives its decryption key from a fixed seed string rather than a device-unique secret. Exploitation requires high privileges, access to encrypted firmware, and difficult reverse engineering; published technical evidence supports firmware decryption, not remote code execution.
Summary
What happened
Use of a hard-coded encryption seed in Hanwha Vision XRN-420S 5.01.62 and earlier allows local users to reproduce the firmware decryption key. The firmware encryption design derives its decryption key from a fixed seed string rather than a device-unique secret. Exploitation requires high privileges, access to encrypted firmware, and difficult reverse engineering; published technical evidence supports firmware decryption, not remote code execution.
The record
- CVE
- CVE-2024-41885
- Published
- Dec 24, 2024
- Updated
- Oct 1, 2025
- Vendor
- Hanwha Vision Co., Ltd.
- Product
- XRN-420S
- Classifications
- CWE-547
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Dec 24, 2024CVE publishedPublication date reported by the CVE source.
- Oct 1, 2025Record 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=5.01.62 and prior versions
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
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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