CVE-2025-61600 (GCVE-0-2025-61600)

Vulnerability from cvelistv5 – Published: 2025-10-02 21:30 – Updated: 2025-10-03 13:39
VLAI
Title
Unbounded Memory Allocation in Stalwart IMAP parser
Summary
Stalwart is a mail and collaboration server. Versions 0.13.3 and below contain an unbounded memory allocation vulnerability in the IMAP protocol parser which allows remote attackers to exhaust server memory, potentially triggering the system's out-of-memory (OOM) killer and causing a denial of service. The CommandParser implementation enforces size limits on its dynamic buffer in most parsing states, but several state handlers omit these validation checks. This issue is fixed in version 0.13.4. A workaround for this issue is to implement rate limiting and connection monitoring at the network level, however this does not provide complete protection.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-03 13:39 UTC
CWE
  • CWE-400 - Uncontrolled Resource Consumption
  • CWE-789 - Memory Allocation with Excessive Size Value
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7985 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
stalwartlabs stalwart Affected: < 0.13.4
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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