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HIGH

CVE-2020-16094

CVSS v3

7.5

HIGH

EPSS Score

1.8 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

In imap_scan_tree_recursive in Claws Mail through 3.17.6, a malicious IMAP server can trigger stack consumption because of unlimited recursion into subdirectories during a rebuild of the folder tree.

Technical details

Published
2020-07-28

Frequently asked questions

What is CVE-2020-16094?

In imap_scan_tree_recursive in Claws Mail through 3.17.6, a malicious IMAP server can trigger stack consumption because of unlimited recursion into subdirectories during a rebuild of the folder tree.

Is CVE-2020-16094 actively exploited?

Active exploitation of CVE-2020-16094 has not been confirmed. Its EPSS score was 1.8% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-16094?

CVE-2020-16094 has a CVSS v3 base score of 7.5 (HIGH severity).

Is CVE-2020-16094 affecting your environment?

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