Malicious update redirection via hardcoded cryptographic material
Published Nov 24, 2025 · Updated Nov 24, 2025
Hardcoded cryptographic material in Xtooltech Xtool AnyScan 4.40.40 and earlier allows attackers to redirect updates via intercepted traffic. The com.xtool.dcloud.RemoteServiceProxy class embeds the same static value as the DES key and IV, enabling update metadata to be decrypted, altered, and re-encrypted. Exploitation requires man-in-the-middle attackers to intercept an update response, while code runs only after a user downloads and selects the malicious plugin.
Summary
What happened
Hardcoded cryptographic material in Xtooltech Xtool AnyScan 4.40.40 and earlier allows attackers to redirect updates via intercepted traffic. The com.xtool.dcloud.RemoteServiceProxy class embeds the same static value as the DES key and IV, enabling update metadata to be decrypted, altered, and re-encrypted. Exploitation requires man-in-the-middle attackers to intercept an update response, while code runs only after a user downloads and selects the malicious plugin.
The record
- CVE
- CVE-2025-63433
- Published
- Nov 24, 2025
- Updated
- Nov 24, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-798, CAPEC-191, T1557
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Nov 24, 2025CVE publishedPublication date reported by the CVE source.
- Nov 24, 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?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
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
- NowSecure AnyScan malicious-plugin proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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