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Critical· 9.8actively exploitedofficial fix available

CVE-2019-15107

A critical command injection flaw exists in Webmin versions up to 1.920. The vulnerability is triggered by the "old" parameter in password_change.cgi, allowing attackers to run arbitrary commands on the server. This can lead to full system compromise.

publishedAug 16, 2019
last modifiedAug 6, 2026
sourcesNVD · CISA-KEV
severity · cvss
9.8
critical · how bad it is
exploitation · epss
100%
100th percentile · chance of exploitation in 30 days
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →
auto-deletes from the system
counting…on Sep 3, 2026

An official fix is available, so this entry is kept for 30 days and then removed automatically.

01

Who is affected

Webmin 1.920 and earlier, typically used by system administrators managing Linux/Unix servers.

02

Real-world impact

An attacker could execute any command on the affected server, potentially taking full control, exfiltrating data, or installing malware.

03

Why this severity

The CVSS score of 9.8 reflects that the flaw can be exploited remotely without authentication or user interaction, and it can compromise confidentiality, integrity, and availability of the system.

04

What to do about it

official fix available
recommended steps
  1. 01Download the latest Webmin update from the official website.
  2. 02Install the update following the vendor's instructions.
  3. 03Restart the Webmin service.

CISA KEV required action

05

Timeline

  1. Aug 16, 2019 · Aug 16, 2019
    Published
    Disclosed and added to the National Vulnerability Database.
  2. Mar 25, 2022 · Mar 25, 2022
    Confirmed exploited (CISA KEV)
    CISA added it to the Known Exploited Vulnerabilities catalog — attackers are using it in the wild.
  3. Apr 15, 2022 · Apr 15, 2022
    CISA remediation deadline
    Federal agencies are required to remediate by this date.
  4. Aug 4, 2026 · 2d ago
    Official fix available
    A vendor patch or mitigation now exists — see the remediation steps above.
  5. Aug 6, 2026 · 4h ago
    Advisory updated
    The NVD record was last revised.
06

How it’s attacked

Attack vectorNetwork (remote)
Attack complexityLow
Privileges requiredNone
User interactionNone needed
ScopeUnchanged
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
07

References & advisories

NVD advisory ↗CISA KEV catalog ↗Search advisories ↗
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →