Description
Zabbix before 5.0 represents passwords in the users table with unsalted MD5.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | zabbix | 1:5.0.0+dfsg-1 | — |
| Debian 13 | zabbix | 1:5.0.0+dfsg-1 | — |
| Debian 12 | zabbix | 1:5.0.0+dfsg-1 | — |
| Debian 10 | zabbix | 1:4.0.4+dfsg-1+deb10u2 | DLA-3538-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | zabbix | No fix yet | — |
| Ubuntu Pro 18.04 LTS | zabbix | No fix yet | — |
| Ubuntu Pro 16.04 LTS | zabbix | No fix yet | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 14.04 LTS | zabbix | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | zabbix | 4.0.12-4.12.1 | SUSE-SU-2021:0990-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP5 | zabbix | 4.0.12-4.12.1 | SUSE-SU-2021:0990-1 |
Advisories 2
- DLA-3538-1 zabbix - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2021:0990-1 Security update for zabbix SUSE / openSUSE Security Updates · Feb 4, 2026