Strix
26.1K

CVE-2016-5311

HIGHCVSS 7.8/10EPSS 0.71%

Last modified

CVE-2016-5311 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 0.71% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
7.8/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability
0.71%

49.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
SymantecEndpoint Protection< 22.8.0.50
SymantecEndpoint Protection Cloud< 22.8.0.50
SymantecNorton 360< 22.7
SymantecNorton Antivirus< 22.7
SymantecNorton Antivirus With Backup< 22.7
SymantecNorton Family< 22.7
SymantecNorton Internet Security< 22.7
SymantecNorton Security< 22.7
SymantecNorton Security With Backup< 22.7

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2016-5311?
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.
How severe is CVE-2016-5311?
CVE-2016-5311 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.71% probability of exploitation in the next 30 days.
How do I fix CVE-2016-5311?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

Related CVEs from 2016

View all 2016CVEs →

Are you affected by CVE-2016-5311?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST