CVE-2020-8416: IKTeam BearFTP before 0.2.0 allows remote attackers to achieve denial of service via a large volume of connect

Q: How do I fix CVE-2020-8416?

bearftp: upgrade to 0.2.0. Exact commands for each OS are on this page.

Q: Is CVE-2020-8416 being exploited?

CVE-2020-8416 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-2020-8416 affect?

CVE-2020-8416 affects bearftp. Severity is high (CVSS 7.5). IKTeam BearFTP before 0.2.0 allows remote attackers to achieve denial of service via a large volume of connections to the PASV mode port.

Q: How urgent is CVE-2020-8416?

Priority 60/100. High severity; EPSS top 3%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

This week

HIGH 7.5REMOTEUPGRADE

CVE-2020-8416 is a high-severity flaw (CVSS 7.5) affecting bearftp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

IKTeam BearFTP before 0.2.0 allows remote attackers to achieve denial of service via a large volume of connections to the PASV mode port.

Why this priority

High severity
EPSS top 3%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	14.2% (top 3%)
CISA exploited list	No
Weakness	CWE-770
Published	2020-01-29
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: iktm

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

Am I affected?

Timeline

2020-01-29 17:15 UTCPublished CVE record published
2026-06-17 03:26 UTCUpdated Record last modified

iktm bearftp UPGRADE

Affected: < 0.2.0

Fixed in: 0.2.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy bearftp || rpm -q bearftp || bearftp --version

2. UPGRADE to 0.2.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade bearftp

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade bearftp

Note

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

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: BearFTP 0.1.0 - 'PASV' Denial of Service

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-2020-8416?

bearftp: upgrade to 0.2.0. Exact commands for each OS are on this page.

Is CVE-2020-8416 being exploited?

CVE-2020-8416 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-2020-8416 affect?

CVE-2020-8416 affects bearftp. Severity is high (CVSS 7.5). IKTeam BearFTP before 0.2.0 allows remote attackers to achieve denial of service via a large volume of connections to the PASV mode port.

How urgent is CVE-2020-8416?

Priority 60/100. High severity; EPSS top 3%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2020-8815 HIGH 7.5 UPGRADE Improper connection handling in the base connection handler in IKTeam BearFTP before v0.3.1 allows a remote at

References

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