CVE-2017-18045: JBMC DirectAdmin before 1.52, when the email_ftp_password_change setting is nonzero, allows remote attackers t

Q: How do I fix CVE-2017-18045?

directadmin: upgrade to 1.52. Exact commands for each OS are on this page.

Q: Is CVE-2017-18045 being exploited?

CVE-2017-18045 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-2017-18045 affect?

CVE-2017-18045 affects directadmin. Severity is critical (CVSS 9.8). JBMC DirectAdmin before 1.52, when the email_ftp_password_change setting is nonzero, allows remote attackers to obtain access or cause a denial of service (segfault) via an unspecified request.

Q: How urgent is CVE-2017-18045?

Priority 57/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 9.8REMOTEUPGRADE

CVE-2017-18045 is a critical-severity flaw (CVSS 9.8) affecting directadmin. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

JBMC DirectAdmin before 1.52, when the email_ftp_password_change setting is nonzero, allows remote attackers to obtain access or cause a denial of service (segfault) via an unspecified request.

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	1.4% (top 28%)
CISA exploited list	No
Published	2018-01-21
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: directadmin

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

Am I affected?

Timeline

2018-01-21 07:29 UTCPublished CVE record published
2026-06-17 01:12 UTCUpdated Record last modified

directadmin directadmin UPGRADE

Affected: < 1.52

Fixed in: 1.52

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 1.52 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade directadmin

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-2017-18045?

directadmin: upgrade to 1.52. Exact commands for each OS are on this page.

Is CVE-2017-18045 being exploited?

CVE-2017-18045 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-2017-18045 affect?

CVE-2017-18045 affects directadmin. Severity is critical (CVSS 9.8). JBMC DirectAdmin before 1.52, when the email_ftp_password_change setting is nonzero, allows remote attackers to obtain access or cause a denial of service (segfault) via an unspecified request.

How urgent is CVE-2017-18045?

Priority 57/100. Critical severity; Remotely exploitable, no login, no user action

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References

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