CVE-2026-62642 Details
Description
In Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2, an infinite loop was discovered in the TNEF decoder, which may lead to denial of service upon opening an email with a TNEF attachment.
A denial-of-service vulnerability has been identified in Roundcube Webmail versions prior to 1.6.17 and 1.7.x prior to 1.7.2. The issue arises from an infinite loop in the TNEF decoder, which can be triggered by opening an email with a TNEF attachment, specifically one that is crafted to exploit this flaw.
Users are advised to update to Roundcube Webmail versions 1.6.17 or 1.7.2, both of which include the necessary fix. Instructions for downloading these versions are available on the Roundcube GitHub releases page.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jul 14, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-835 | Loop with Unreachable Exit Condition ('Infinite Loop') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| roundcube webmail | >= 1.6.0, < 1.6.17 >= 1.7.0, < 1.7.2 |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 20, 2026 | Initial Analysis | [email protected] |
| Jul 14, 2026 | CVE Modified | CISA-ADP |
| Jul 14, 2026 | New CVE Received | [email protected] |