Vulnerability in Xtooltech Xtool Anyscan
CVE-2025-63434
The update mechanism in Xtooltech Xtool AnyScan Android Application 4.40.40 and prior is insecure. The application downloads and extracts update packages containing executable code without performing a cryptographic integrity or authenticity check on their contents. An attacker who can control the update metadata can serve a malicious package, which the application will accept, extract, and later execute, leading to arbitrary code execution.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (22.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 22.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.nowsecure.com/blog/2025/07/16/remote-code-execution-discovered-in-xtool-any… (Exploit, Third Party Advisory)
- github.com/ab3lson/cve-references/tree/master/CVE-2025-63434 (Third Party Advisory)
Frequently asked questions
- What is CVE-2025-63434?
- CVE-2025-63434 is a high-severity vulnerability in Xtooltech Xtool Anyscan, classified under Download of Code Without Integrity Check. CVSS score: 8.8/10. Published 2025-11-24.
- How severe is CVE-2025-63434?
- High severity. CVSS v3 base score is 8.8 out of 10.