CVE-2007-3771

Stack-based buffer overflow in the Internet E-mail Auto-Protect feature in Symantec AntiVirus Corporate Edition before 10.1, and Client Security before 3.1, allows local users to cause a denial of service (service crash) via a long (1) To, (2) From, or (3) Subject header in an outbound SMTP e-mail message. NOTE: the original vendor advisory referenced CVE-2006-3456, but this was an error.

Published: 2007-07-15 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2007-3771 is rated Low Risk (28/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.06%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2007-3771

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2024-12-07 0.04% 0.06% +0.02%
2 2023-03-07 1.10% 0.04% -1.06%
3 2022-02-04 — 1.10% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2007-3771

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.6 2.0 MEDIUM
AV:L/AC:L/Au:S/C:N/I:N/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.1 6.9 [email protected]

Weakness enumeration for CVE-2007-3771

Affected software / configurations for CVE-2007-3771

Vendor Product Version Raw CPE
symantec client_security 2.0 cpe:2.3:a:symantec:client_security:2.0:*:*:*:*:*:*:*
symantec client_security 3.0 cpe:2.3:a:symantec:client_security:3.0:*:*:*:*:*:*:*
symantec client_security 3.0.1.1000 cpe:2.3:a:symantec:client_security:3.0.1.1000:*:*:*:*:*:*:*
symantec client_security 3.0.1.1007 cpe:2.3:a:symantec:client_security:3.0.1.1007:*:*:*:*:*:*:*
symantec client_security 3.0.1.1009 cpe:2.3:a:symantec:client_security:3.0.1.1009:*:*:*:*:*:*:*
symantec client_security 3.0.2 cpe:2.3:a:symantec:client_security:3.0.2:*:*:*:*:*:*:*
symantec client_security 3.0.2.2000 cpe:2.3:a:symantec:client_security:3.0.2.2000:*:*:*:*:*:*:*
symantec client_security 3.0.2.2001 cpe:2.3:a:symantec:client_security:3.0.2.2001:*:*:*:*:*:*:*
symantec client_security 3.0.2.2002 cpe:2.3:a:symantec:client_security:3.0.2.2002:*:*:*:*:*:*:*
symantec client_security 3.0.2.2011 cpe:2.3:a:symantec:client_security:3.0.2.2011:*:*:*:*:*:*:*
symantec client_security 3.0.2.2021 cpe:2.3:a:symantec:client_security:3.0.2.2021:*:*:*:*:*:*:*
symantec norton_antivirus 9.0 cpe:2.3:a:symantec:norton_antivirus:9.0:*:corporate:*:*:*:*:*
symantec norton_antivirus 9.0.0.338 cpe:2.3:a:symantec:norton_antivirus:9.0.0.338:*:corporate:*:*:*:*:*
symantec norton_antivirus 9.0.1 cpe:2.3:a:symantec:norton_antivirus:9.0.1:*:corporate:*:*:*:*:*
symantec norton_antivirus 9.0.1.1.1000 cpe:2.3:a:symantec:norton_antivirus:9.0.1.1.1000:*:corporate:*:*:*:*:*
symantec norton_antivirus 9.0.1.1000 cpe:2.3:a:symantec:norton_antivirus:9.0.1.1000:*:corporate:*:*:*:*:*
symantec norton_antivirus 9.0.2 cpe:2.3:a:symantec:norton_antivirus:9.0.2:*:corporate:*:*:*:*:*
symantec norton_antivirus 9.0.2.1000 cpe:2.3:a:symantec:norton_antivirus:9.0.2.1000:*:corporate:*:*:*:*:*
symantec norton_antivirus 9.0.3.1000 cpe:2.3:a:symantec:norton_antivirus:9.0.3.1000:*:corporate:*:*:*:*:*
symantec norton_antivirus 9.0.4 cpe:2.3:a:symantec:norton_antivirus:9.0.4:*:corporate:*:*:*:*:*
symantec norton_antivirus 9.0.5 cpe:2.3:a:symantec:norton_antivirus:9.0.5:*:corporate:*:*:*:*:*
symantec norton_antivirus 9.0.5.1100 cpe:2.3:a:symantec:norton_antivirus:9.0.5.1100:*:corporate:*:*:*:*:*
symantec norton_antivirus 10.0 cpe:2.3:a:symantec:norton_antivirus:10.0:*:corporate:*:*:*:*:*
symantec norton_antivirus 10.0.1.1000 cpe:2.3:a:symantec:norton_antivirus:10.0.1.1000:*:corporate:*:*:*:*:*
symantec norton_antivirus 10.0.1.1007 cpe:2.3:a:symantec:norton_antivirus:10.0.1.1007:*:corporate:*:*:*:*:*
symantec norton_antivirus 10.0.2.2000 cpe:2.3:a:symantec:norton_antivirus:10.0.2.2000:*:corporate:*:*:*:*:*
symantec norton_antivirus 10.0.2.2001 cpe:2.3:a:symantec:norton_antivirus:10.0.2.2001:*:corporate:*:*:*:*:*
symantec norton_antivirus 10.0.2.2002 cpe:2.3:a:symantec:norton_antivirus:10.0.2.2002:*:corporate:*:*:*:*:*
symantec norton_antivirus 10.0.2.2010 cpe:2.3:a:symantec:norton_antivirus:10.0.2.2010:*:corporate:*:*:*:*:*
symantec norton_antivirus 10.0.2.2011 cpe:2.3:a:symantec:norton_antivirus:10.0.2.2011:*:corporate:*:*:*:*:*
symantec norton_antivirus 10.0.2.2020 cpe:2.3:a:symantec:norton_antivirus:10.0.2.2020:*:corporate:*:*:*:*:*
symantec norton_antivirus 10.0.2.2021 cpe:2.3:a:symantec:norton_antivirus:10.0.2.2021:*:corporate:*:*:*:*:*

References for CVE-2007-3771

cvelogic Threat Intelligence