Is CVE-2016-3645 actively exploited?

CVE-2016-3645 has no public evidence of in-the-wild exploitation as of 2025-04-12.

What is the CVSS score for CVE-2016-3645?

CVE-2016-3645 has a CVSS score of 9.8 (CRITICAL severity). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2016-3645?

Patch guidance is available from symantec security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2016-3645.

Fix CVE-2016-3645 - CRITICAL symantec norton security

Q: Which products are affected by CVE-2016-3645?

37 products: symantec norton security, symantec protection engine, symantec protection engine, symantec protection engine, symantec advanced threat protection, and 32 more.

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.

CVSS Metrics

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-189

Metadata

Primary Vendor: SYMANTEC
Published: 6/30/2016
Last Modified: 4/12/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

symantec : norton_securitysymantec : protection_enginesymantec : protection_enginesymantec : protection_enginesymantec : advanced_threat_protectionsymantec : norton_bootable_removal_toolsymantec : data_center_security_serversymantec : data_center_security_serversymantec : data_center_security_serversymantec : data_center_security_serversymantec : data_center_security_serversymantec : data_center_security_serversymantec : protection_for_sharepoint_serverssymantec : protection_for_sharepoint_serverssymantec : message_gateway_for_service_providerssymantec : message_gateway_for_service_providerssymantec : csapisymantec : endpoint_protectionsymantec : endpoint_protectionsymantec : endpoint_protectionsymantec : endpoint_protectionsymantec : endpoint_protectionsymantec : endpoint_protectionsymantec : endpoint_protectionsymantec : norton_power_erasersymantec : mail_security_for_dominosymantec : mail_security_for_dominosymantec : mail_security_for_microsoft_exchangesymantec : mail_security_for_microsoft_exchangesymantec : mail_security_for_microsoft_exchangesymantec : message_gatewaysymantec : norton_360symantec : norton_antivirussymantec : norton_internet_securitysymantec : norton_securitysymantec : norton_security_with_backupsymantec : ngc

Remediation Guidance

Executive Summary

View on NIST NVD