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CVE Record

CVE-2016-3646: The AntiVirus Decomposer engine in Symantec Advanced Threat Protection (ATP); Symantec Data Center Security...

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 execute arbitrary code or cause a denial of service (memory access violation) via a crafted ZIP archive that is mishandled during decompression.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

CVE-2016-3646 affects the Symantec/Norton antivirus decompression engine. A malicious ZIP archive could cause affected security products to crash or execute attacker-controlled code while scanning content. Business risk is highest where old Symantec mail, gateway, endpoint, server, SharePoint, or Norton products still inspect untrusted files. Exposure is most likely in legacy Symantec or Norton deployments that still scan email, web uploads, endpoints, SharePoint content, gateways, or protection engines. The affected list is broad, so inventory must include server-side scanners and embedded decomposer/CSAPI consumers, not only desktop endpoint agents. Prioritize remediation if any listed Symantec or Norton product remains in production. Security tools often process attacker-supplied files automatically, so vulnerable scanners can become a path into high-trust systems. The main uncertainty is current deployment, not the potential impact. Mitigation focus: Inventory all Symantec and Norton products listed in the CVE.; Upgrade each product to the fixed version named for its branch.; Prioritize mail, gateway, SharePoint, and server-side scanning components..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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CVE-2016-3646 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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