CVE-2007-3771
Stack-based buffer overflow in the Internet E-mail Auto-Protect feature in Symantec AntiVirus...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2007-3771- CVSS 2.0
- 4.6 Medium
AV:L/AC:L/Au:S/C:N/I:N/A:C - Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2007-3771- Updated
- 2026-11-02
EUVDEUVD-2007-3755 No score
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.
- Record
EUVD-2007-3755- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-f844-8gxq-37w7 No score
Stack-based buffer overflow in the Internet E-mail Auto-Protect feature in Symantec AntiVirus...
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.
- Record
GHSA-f844-8gxq-37w7- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| aliases, references, title | GitHub Advisories | |
| first indexed | CVE List, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2007-3771 is a medium vulnerability (CVSS 4.6) in Symantec Client Security, published July 15, 2007. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.36%, the 29th percentile. No source names a fixed version.