CVE-2010-20119
HIGH EPSS 60.1%
Published Aug 21, 202510mo ago · Modified Jun 16, 20261w ago
8.6 CVSS 4.0
Published Aug 21, 2025 10mo ago
Last Modified Jun 16, 2026 1w ago
Description
CommuniCrypt Mail versions up to and including 1.16 contains a stack-based buffer overflow vulnerability in its ANSMTP.dll and AOSMTP.dll ActiveX controls, specifically within the AddAttachments() method. This method fails to properly validate the length of input strings, allowing data to exceed the bounds of a fixed-size stack buffer. When invoked with an overly long string, the control can corrupt adjacent memory structures, including exception handlers, leading to potential control flow disruption.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction A
Scope X
Threat Intelligence
EPSS Exploit Probability
60.1% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-121
References 6
- raw.githubusercontent.com https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/browser/communicrypt_mail_activex.rb
- softwarelode.com https://softwarelode.com/4185/details-communicrypt-mail.html
- broadcom.com https://www.broadcom.com/support/security-center/attacksignatures/detail?asid=24374
- exploit-db.com https://www.exploit-db.com/exploits/12663
- fortiguard.com https://www.fortiguard.com/encyclopedia/ips/23099
- vulncheck.com https://www.vulncheck.com/advisories/communicrypt-mail-activex-control-buffer-overflow
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.