CVE-2010-20119: high-severity vulnerability in CommuniCrypt Mail
CommuniCrypt Mail <= 1.16 ANSMTP/AOSMTP ActiveX Control Buffer Overflow
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
36Vexday Risk Score
Patch soon. It has a working public exploit.
ssvc Attendcvss 8.6epss 1.7%
from disclosure to weaponsame day
Published on NVDAug 21
metasploitMay 19
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:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
CommuniCrypt Software · CommuniCrypt MailReferences
https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/browser/communicrypt_mail_activex.rbhttps://softwarelode.com/4185/details-communicrypt-mail.htmlhttps://www.broadcom.com/support/security-center/attacksignatures/detail?asid=24374https://www.exploit-db.com/exploits/12663https://www.fortiguard.com/encyclopedia/ips/23099https://www.vulncheck.com/advisories/communicrypt-mail-activex-control-buffer-overflow