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CVE-2016-5311

A Privilege Escalation vulnerability exists in Symantec Norton Antivirus, Norton AntiVirus with Backup, Norton Security, Norton Security…

High7.8EPSS 0.71%
Published
Updated
Reserved
Assigned by
symantec

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.

Scores

CVSS scores of CVE-2016-5311, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified3.1High7.8CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS (exploitation in 30 days)
0.71% · top 46% of all CVEs (2 Nov 2026)

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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.

Weakness

Affected products

  • Symantec · Norton Antivirus, Norton AntiVirus with Backup, Norton Security, Norton Security with Backup, Norton Internet Security, Norton 360

    • affected before 22.7

  • Symantec · Endpoint Protection Small Business Edition Cloud, and Endpoint Protection Cloud Client

    • affected before 22.8.0.50

References (5)

Sources

The same CVE in the primary databases and aggregators, to check against.

Record last updated .