CVE-2026-62641
Roundcube Webmail TNEF Decoder Denial of Service Vulnerability
Description
In Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2, the TNEF decoder was subject to denial of service via a crafted compressed-RTF size.
INFO
Published Date :
July 14, 2026, 4:17 p.m.
Last Modified :
July 14, 2026, 4:17 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 8254265b-2729-46b6-b9e3-3dfca2d5bfca | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update Roundcube Webmail to version 1.6.17 or later.
- Update Roundcube Webmail to version 1.7.2 or later.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-62641.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-62641 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-62641
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-62641 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-62641 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by [email protected]
Jul. 14, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Roundcube', 'product': 'Webmail', 'versions': [{'status': 'affected', 'version': '1.6.0', 'lessThan': '1.6.17', 'versionType': 'semver'}, {'status': 'affected', 'version': '1.7.0', 'lessThan': '1.7.2', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}] Added Description In Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2, the TNEF decoder was subject to denial of service via a crafted compressed-RTF size. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L Added CWE CWE-770 Added Reference https://github.com/roundcube/roundcubemail/commit/6d1004fd3764a9606c53130b322c0f295c38be64 Added Reference https://github.com/roundcube/roundcubemail/commit/bf253c72d4293c93fda511b8464fe9cb34b522c1 Added Reference https://github.com/roundcube/roundcubemail/releases/tag/1.6.17 Added Reference https://github.com/roundcube/roundcubemail/releases/tag/1.7.2 Added Reference https://roundcube.net/news/2026/07/05/security-updates-1.6.17-and-1.7.2