CVE-2026-74997
CVSS v3
8.8
HIGH
EPSS Score
1.1 %
exploit probability, as of 2026-10-02
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, the cmd_learn driver of the markasjunk plugin is subject to remote code execution via crafted placeholder replacement values. This issue only affects Roundcube instances using the markasjunk plugin with its cmd_learn driver.
Technical details
- Published
- 2026-08-17
- Last Modified
- 2026-08-17
Frequently asked questions
What is CVE-2026-74997?
In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, the cmd_learn driver of the markasjunk plugin is subject to remote code execution via crafted placeholder replacement values. This issue only affects Roundcube instances using the markasjunk plugin with its cmd_learn driver.
Is CVE-2026-74997 actively exploited?
Active exploitation of CVE-2026-74997 has not been confirmed. Its EPSS score was 1.1% on 2026-10-02, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2026-74997?
CVE-2026-74997 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2026-74997 affecting your environment?
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