CVE-2025-63435: Xtooltech Xtool AnyScan Android Application 4.40.40 is Missing Authentication for Critical Function

Q: How do I fix CVE-2025-63435?

xtool anyscan: upgrade to newer than 4.40.40. Exact commands for each OS are on this page.

Q: Is CVE-2025-63435 being exploited?

CVE-2025-63435 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-63435 affect?

CVE-2025-63435 affects xtool anyscan. Severity is medium (CVSS 4.3). Xtooltech Xtool AnyScan Android Application 4.40.40 is Missing Authentication for Critical Function. The server-side endpoint responsible for serving update packages for the application does not require any authentication. This allows an un

Q: How urgent is CVE-2025-63435?

Priority 28/100. Public exploit reference

Routine

MEDIUM 4.3UPGRADE

CVE-2025-63435 is a medium-severity flaw (CVSS 4.3) affecting xtool anyscan. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Xtooltech Xtool AnyScan Android Application 4.40.40 is Missing Authentication for Critical Function. The server-side endpoint responsible for serving update packages for the application does not require any authentication. This allows an unauthenticated remote attacker to freely download official update packages..

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 67%)
CISA exploited list	No
Weakness	CWE-306
Published	2025-11-24
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: xtooltech

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-11-24 17:16 UTCPublished CVE record published
2026-06-17 09:53 UTCUpdated Record last modified

xtooltech xtool anyscan UPGRADE

Affected: <= 4.40.40

Fixed in: newer than 4.40.40

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy xtool-anyscan || rpm -q xtool-anyscan || xtool-anyscan --version

2. UPGRADE to newer than 4.40.40 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade xtool-anyscan

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade xtool-anyscan

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-63435?

xtool anyscan: upgrade to newer than 4.40.40. Exact commands for each OS are on this page.

Is CVE-2025-63435 being exploited?

CVE-2025-63435 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-63435 affect?

CVE-2025-63435 affects xtool anyscan. Severity is medium (CVSS 4.3). Xtooltech Xtool AnyScan Android Application 4.40.40 is Missing Authentication for Critical Function. The server-side endpoint responsible for serving update packages for the application does not require any authentication. This allows an un

How urgent is CVE-2025-63435?

Priority 28/100. Public exploit reference

Software pages

Android vulnerabilities

Related CVEs

CVE-2025-63434 HIGH 8.8 UPGRADE The update mechanism in Xtooltech Xtool AnyScan Android Application 4.40.40 and prior is insecure
CVE-2025-63433 MEDIUM 4.6 UPGRADE Xtooltech Xtool AnyScan Android Application 4.40.40 and prior uses a hardcoded cryptographic key and IV to dec
CVE-2025-63432 MEDIUM 4.6 UPGRADE Xtooltech Xtool AnyScan Android Application 4.40.40 and prior is Missing SSL Certificate Validation

References

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