What is CVE-2026-75002?

CVE-2026-75002 is a high-severity vulnerability in Roundcube Webmail, classified under Command Injection. CVSS score: 7.1/10. Published 2026-08-17.

How severe is CVE-2026-75002?

High severity. CVSS v3 base score is 7.1 out of 10.

RCE in Roundcube Webmail

CVE-2026-75002

In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, mail search and LITERAL+ byte-count desynchronization could lead to information disclosure or privilege escalation via IMAP command injection.

Vulnerability class: Command Injection (OS Command Injection)

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L.

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-2026-75002?: CVE-2026-75002 is a high-severity vulnerability in Roundcube Webmail, classified under Command Injection. CVSS score: 7.1/10. Published 2026-08-17.
How severe is CVE-2026-75002?: High severity. CVSS v3 base score is 7.1 out of 10.