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CVE-2016-5311

HIGH
7.8
CVSS Score
Published: January 9, 2020 at 07:30 PM UTC
Updated: June 17, 2026 at 12:49 AM UTC
10 products affected across 1 vendorEndpoint ProtectionNorton AntivirusNorton Internet Security

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Severity
HIGH7.8
Exploit prediction
EPSS 0.7%

Description

A Privilege Escalation vulnerability exists in Symantec Norton Antivirus, Norton AntiVirus with Backup, Norton Security, Norton Security with Backup, Norton Internet Security, Norton 360, Endpoint Protection Small Business Edition Cloud, and Endpoint Protection Cloud Client due to a DLL-preloading without path restrictions, which could let a local malicious user obtain system privileges.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Endpoint Protection· Symantec
95%
v < 22.8.0.50
Affected range stops below 22.8.0.50, so it looks safe — our inference, not a vendor statement
Endpoint Protection Cloud· Symantec
95%
v < 22.8.0.50
Affected range stops below 22.8.0.50, so it looks safe — our inference, not a vendor statement
Norton 360· Symantec
95%
v < 22.7
Affected range stops below 22.7, so it looks safe — our inference, not a vendor statement
Norton Antivirus· Symantec
95%
v < 22.7
Affected range stops below 22.7, so it looks safe — our inference, not a vendor statement
Norton Antivirus with Backup· Symantec
95%
v < 22.7
Affected range stops below 22.7, so it looks safe — our inference, not a vendor statement
Norton Family· Symantec
95%
v < 22.7
Affected range stops below 22.7, so it looks safe — our inference, not a vendor statement
Norton Internet Security· Symantec
95%
v < 22.7
Affected range stops below 22.7, so it looks safe — our inference, not a vendor statement
Norton Security· Symantec
95%
v < 22.7
Affected range stops below 22.7, so it looks safe — our inference, not a vendor statement
Norton Security with Backup· Symantec
95%
v < 22.7
Affected range stops below 22.7, so it looks safe — our inference, not a vendor statement
Endpoint Protection Cloud Client· Symantec
60%
v < 22.8.0.50
Affected range stops below 22.8.0.50, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (5)

x_refsource_MISCThird Party AdvisoryVDB Entry
Source: [email protected]
http://www.securityfocus.com/bid/94295
x_refsource_MISCThird Party AdvisoryVDB Entry
Source: [email protected]
http://www.securitytracker.com/id/1037323
x_refsource_MISCThird Party AdvisoryVDB Entry
Source: [email protected]
http://www.securitytracker.com/id/1037324
x_refsource_MISCThird Party AdvisoryVDB Entry
Source: [email protected]
http://www.securitytracker.com/id/1037325
x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=&suid=20161117_00

CVSS

7.8HIGH[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-427

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