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Medium severity6.5NVD Advisory· Published Apr 25, 2019· Updated Jun 17, 2026

CVE-2018-18366

CVE-2018-18366

Description

Symantec Norton Security prior to 22.16.3, SEP (Windows client) prior to and including 12.1 RU6 MP9, and prior to 14.2 RU1, SEP SBE prior to Cloud Agent 3.00.31.2817, NIS-22.15.2.22, SEP-12.1.7484.7002 and SEP Cloud prior to 22.16.3 may be susceptible to a kernel memory disclosure, which is a type of issue where a specially crafted IRP request can cause the driver to return uninitialized memory.

Affected products

60
  • Symantec/Endpoint Protection50 versions
    cpe:2.3:a:symantec:endpoint_protection:11.0:*:*:*:*:windows:*:*+ 49 more
    • cpe:2.3:a:symantec:endpoint_protection:11.0:*:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:11.0:mr1:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:11.0:mr2:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:11.0:mr3:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:11.0:mr4-mp2:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:11.0:mr4:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:11.0:ru5:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:11.0:ru6-mp1:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:11.0:ru6-mp2:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:11.0:ru6-mp3:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:11.0:ru6:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:11.0:ru6a:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:11.0:ru7-mp1:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:11.0:ru7-mp2:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:11.0:ru7-mp4:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:11.0:ru7-mp4a:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:11.0:ru7:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:11.0:ry7-mp3:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:12.1:*:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:12.1:ru1-mp1:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:12.1:ru1:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:12.1:ru2-mp1:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:12.1:ru2:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:12.1:ru3:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:12.1:ru4-mp1:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:12.1:ru4-mp1a:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:12.1:ru4-mp1b:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:12.1:ru4:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:12.1:ru4a:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:12.1:ru5:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:12.1:ru6-mp10:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:12.1:ru6-mp1:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:12.1:ru6-mp2:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:12.1:ru6-mp3:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:12.1:ru6-mp4:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:12.1:ru6-mp5:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:12.1:ru6-mp6:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:12.1:ru6-mp7:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:12.1:ru6-mp8:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:12.1:ru6:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:14.0.0:mp2:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:14.0.1:*:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:14.0.1:mp1:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:14.0.1:mp2:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:14.2:*:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:14.2:mp1:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:14:*:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:14:mp1:*:*:*:windows:*:*
    • cpe:2.3:a:symantec:endpoint_protection:nis-22.15.2.22:*:*:*:small_business:*:*:*
    • cpe:2.3:a:symantec:endpoint_protection:sep-12.1.7484.7002:*:*:*:small_business:*:*:*
  • Symantec/Endpoint Protection Cloud
    cpe:2.3:a:symantec:endpoint_protection_cloud:*:*:*:*:*:*:*:*
    Range: <22.16.3
  • Symantec/Endpoint Protection Cloud Agent
    cpe:2.3:a:symantec:endpoint_protection_cloud_agent:*:*:*:*:small_business:*:*:*
    Range: <3.00.31.2817
  • Symantec/Norton Security2 versions
    cpe:2.3:a:symantec:norton_security:*:*:*:*:*:windows:*:*+ 1 more
    • cpe:2.3:a:symantec:norton_security:*:*:*:*:*:windows:*:*range: <22.16.3
    • (no CPE)range: <22.16.3
  • Symantec/SEP SBEllm-create
    Range: <Cloud Agent 3.00.31.2817
  • Symantec/SEPllm-fuzzy
    Range: <12.1 RU6 MP9, <=14.2 RU1
  • Symantec Corporation/Norton Securityv5
    Range: Prior to 22.16.3
  • Symantec Corporation/SEP (Windows client)v5
    Range: Prior to and including 12.1 RU6 MP9
  • Symantec Corporation/SEP Cloudv5
    Range: Prior to 22.16.3
  • Symantec Corporation/SEP SBEv5
    Range: Prior to Cloud Agent 3.00.31.2817

Patches

Vulnerability mechanics

References

2

News mentions

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