Vulnerability Monitor

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CVE-2015-3326

Trend Micro ScanMail for Microsoft Exchange (SMEX) 10.2 before Hot Fix Build 3318 and 11.0 before Hot Fix Build 4180 creates session IDs for the web console using a random number generator with predictable values, which makes it easier for remote attackers to bypass authentication via a brute force attack.

Security Impact Summary

CVE-2015-3326 is a security vulnerability that . Impacting 1 product from trend_micro organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2015, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2015-05-14T00:59:03.647

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 5.0 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
NVD-CWE-Other

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	trend_micro	scanmail	10.2	Yes
Application	trend_micro	scanmail	11.0	Yes

References

http://blog.malerisch.net/2016/05/trendmicro-smex-session-predictable-cve-2015-3326.html ([email protected])
http://esupport.trendmicro.com/solution/en-US/1109669.aspx Vendor Advisory ([email protected])
http://www.securityfocus.com/bid/74661 ([email protected])
http://www.securitytracker.com/id/1032323 ([email protected])
http://blog.malerisch.net/2016/05/trendmicro-smex-session-predictable-cve-2015-3326.html (af854a3a-2127-422b-91ae-364da2661108)
http://esupport.trendmicro.com/solution/en-US/1109669.aspx Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/74661 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1032323 (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For trend_micro's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.