CVE-2020-35173: The Amaze File Manager application before 3.4.2 for Android does not properly restrict intents for controlling

Q: How do I fix CVE-2020-35173?

amaze file manager: upgrade to 3.4.2. Exact commands for each OS are on this page.

Q: Is CVE-2020-35173 being exploited?

CVE-2020-35173 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-2020-35173 affect?

CVE-2020-35173 affects amaze file manager. Severity is critical (CVSS 9.8). The Amaze File Manager application before 3.4.2 for Android does not properly restrict intents for controlling the FTP server (aka services.ftpservice.FTPReceiver.ACTION_START_FTPSERVER and services.ftpservice.FTPReceiver.ACTION_STOP_FTPSER

Q: How urgent is CVE-2020-35173?

Priority 59/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 9.8REMOTEUPGRADE

CVE-2020-35173 is a critical-severity flaw (CVSS 9.8) affecting amaze file manager. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Amaze File Manager application before 3.4.2 for Android does not properly restrict intents for controlling the FTP server (aka services.ftpservice.FTPReceiver.ACTION_START_FTPSERVER and services.ftpservice.FTPReceiver.ACTION_STOP_FTPSERVER).

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.7% (top 22%)
CISA exploited list	No
Published	2020-12-30
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: amaze file manager project

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

Am I affected?

Timeline

2020-12-30 20:15 UTCPublished CVE record published
2026-06-17 03:13 UTCUpdated Record last modified

amaze file manager project amaze file manager UPGRADE

Affected: < 3.4.2

Fixed in: 3.4.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy amaze-file-manager || rpm -q amaze-file-manager || amaze-file-manager --version

2. UPGRADE to 3.4.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade amaze-file-manager

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade amaze-file-manager

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-2020-35173?

amaze file manager: upgrade to 3.4.2. Exact commands for each OS are on this page.

Is CVE-2020-35173 being exploited?

CVE-2020-35173 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-2020-35173 affect?

CVE-2020-35173 affects amaze file manager. Severity is critical (CVSS 9.8). The Amaze File Manager application before 3.4.2 for Android does not properly restrict intents for controlling the FTP server (aka services.ftpservice.FTPReceiver.ACTION_START_FTPSERVER and services.ftpservice.FTPReceiver.ACTION_STOP_FTPSER

How urgent is CVE-2020-35173?

Priority 59/100. Critical severity; Remotely exploitable, no login, no user action

Software pages

Android vulnerabilities

Related CVEs

CVE-2020-36246 HIGH 7.8 UPGRADE Amaze File Manager before 3.5.1 allows attackers to obtain root privileges via shell metacharacters in a symbo

References

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