What is CVE-2026-75007?

CVE-2026-75007 is a medium-severity vulnerability in Roundcube Webmail, classified under Command Injection. CVSS score: 5.4/10. Published 2026-08-17.

How severe is CVE-2026-75007?

Medium severity. CVSS v3 base score is 5.4 out of 10.

RCE in Roundcube Webmail

CVE-2026-75007

In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, the LDAP search filter was subject to injection via unescaped %u/%fu/%d substitution, which may lead to information disclosure or privilege escalation.

Vulnerability class: Command Injection (OS Command Injection)

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.

Affected products

Roundcube Webmail — versions 1.6.0, 1.7.0

Weakness classification (CWE)

CWE-77 — Command Injection

References

cve@mitre.org
cve@mitre.org
cve@mitre.org
cve@mitre.org
cve@mitre.org

Frequently asked questions

What is CVE-2026-75007?: CVE-2026-75007 is a medium-severity vulnerability in Roundcube Webmail, classified under Command Injection. CVSS score: 5.4/10. Published 2026-08-17.
How severe is CVE-2026-75007?: Medium severity. CVSS v3 base score is 5.4 out of 10.