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CVE-2026-27602

Modoboa command injection

7.2 HIGHPublic exploitEPSS 0.69%
  1. Published25 Mar 2026

Description

Modoboa is a mail hosting and management platform. Prior to version 2.7.1, `exec_cmd()` in `modoboa/lib/sysutils.py` always runs subprocess calls with `shell=True`. Since domain names flow directly into shell command strings without any sanitization, a Reseller or SuperAdmin can include shell metacharacters in a domain name to run arbitrary OS commands on the server. Version 2.7.1 patches the issue.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredHigh
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

Modoboa< 2.7.1

Remediation

Fixed in
Modoboa≥ 2.7.1

References

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Frequently asked

Is CVE-2026-27602 being actively exploited?

CVE-2026-27602 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.69%.

How severe is CVE-2026-27602?

CVE-2026-27602 has a CVSS 3.1 base score of 7.2, rated high. EPSS estimates a 0.69% probability of exploitation.

Which products are affected by CVE-2026-27602?

Affected products include Modoboa.

How do I fix CVE-2026-27602?

Upgrade affected software to a fixed version, for example Modoboa 2.7.1 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-27602 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.