What’s Vulnerable › Vulnerabilities

CVE-2016-3645

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 24.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2016-06-30 · updated 2026-06-17
• Weakness: CWE-189

Description

Integer overflow in the TNEF unpacker in the AntiVirus Decomposer engine in Symantec Advanced Threat Protection (ATP); Symantec Data Center Security:Server (SDCS:S) 6.x through 6.6 MP1; Symantec Web Gateway; Symantec Endpoint Protection (SEP) before 12.1 RU6 MP5; Symantec Endpoint Protection (SEP) for Mac; Symantec Endpoint Protection (SEP) for Linux before 12.1 RU6 MP5; Symantec Protection Engine (SPE) before 7.0.5 HF01, 7.5.x before 7.5.3 HF03, 7.5.4 before HF01, and 7.8.0 before HF01; Symantec Protection for SharePoint Servers (SPSS) 6.0.3 through 6.0.5 before 6.0.5 HF 1.5 and 6.0.6 before HF 1.6; Symantec Mail Security for Microsoft Exchange (SMSMSE) before 7.0_3966002 HF1.1 and 7.5.x before 7.5_3966008 VHF1.2; Symantec Mail Security for Domino (SMSDOM) before 8.0.9 HF1.1 and 8.1.x before 8.1.3 HF1.2; CSAPI before 10.0.4 HF01; Symantec Message Gateway (SMG) before 10.6.1-4; Symantec Message Gateway for Service Providers (SMG-SP) 10.5 before patch 254 and 10.6 before patch 253; Norton AntiVirus, Norton Security, Norton Internet Security, and Norton 360 before NGC 22.7; Norton Security for Mac before 13.0.2; Norton Power Eraser (NPE) before 5.1; and Norton Bootable Removal Tool (NBRT) before 2016.1 allows remote attackers to have an unspecified impact via crafted TNEF data.

Affected products

• Symantec Advanced Threat Protection: through 2.0.3
• Symantec Csapi: through 10.0.4
• Symantec Data Center Security Server: 6.0, 6.0-mp1, 6.5, 6.5-mp1, 6.6, 6.6-mp1
• Symantec Endpoint Protection: 12.1.6, 12.1.6-mp1, 12.1.6-mp2, 12.1.6-mp3, 12.1.6-mp4
• Symantec Mail Security For Domino: from 8.0 through 8.0.9; from 8.1 through 8.1.3
• Symantec Mail Security For Microsoft Exchange: from 7.0 through 7.0.4; from 7.5 through 7.5.4; 6.5.8
• Symantec Message Gateway: through 10.6.1-3
• Symantec Message Gateway For Service Providers: 10.5, 10.6
• Symantec Ngc: through 22.6
• Symantec Norton 360: all versions
• Symantec Norton Antivirus: all versions
• Symantec Norton Bootable Removal Tool: through 2016.0
• Symantec Norton Internet Security: all versions
• Symantec Corporation Norton Power Eraser: through 5.0
• Symantec Corporation Norton Security: through 13.0.1
• Symantec Norton Security With Backup: all versions
• Symantec Protection Engine: from 7.0.0 through 7.0.5; from 7.5.0 through 7.5.4; 7.8.0
• Symantec Protection For Sharepoint Servers: from 6.0 through 6.0.6; from 6.03 through 6.05

References

• http://www.securityfocus.com/bid/91439
• http://www.securitytracker.com/id/1036198
• http://www.securitytracker.com/id/1036199
• https://www.exploit-db.com/exploits/40035/
• https://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=&suid=20160628_00
• http://www.securityfocus.com/bid/91439
• http://www.securitytracker.com/id/1036198
• http://www.securitytracker.com/id/1036199
• https://www.exploit-db.com/exploits/40035/
• https://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=&suid=20160628_00

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