HOMEVULNERABILITIESCVE-2018-18369
HIGH

CVE-2018-18369

CWE-426Published: April 25, 2019· Updated: Jun 17, 2026

7.8
CVSS v3.1

Official Description

Norton Security (Windows client) prior to 22.16.3 and SEP SBE (Windows client) prior to Cloud Agent 3.00.31.2817, NIS-22.15.2.22 & SEP-12.1.7484.7002, may be susceptible to a DLL Preloading vulnerability, which is a type of issue that can occur when an application looks to call a DLL for execution and an attacker provides a malicious DLL to use instead.

NVD Source

Technical Analysis

CVE-2018-18369 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Vendors & Products

symantec4 product(s)
endpoint protectionendpoint protection cloudendpoint protection cloud agentnorton security
Source: NVD CPE · 5 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://www.securityfocus.com/bid/107997
ADVISORYhttps://support.symantec.com/en_US/article.SYMSA1479.html
ADVISORYhttp://www.securityfocus.com/bid/107997
ADVISORYhttps://support.symantec.com/en_US/article.SYMSA1479.html

All References (4)

→
http://www.securityfocus.com/bid/107997Third Party Advisory · VDB Entry
→
https://support.symantec.com/en_US/article.SYMSA1479.htmlVendor Advisory
→
http://www.securityfocus.com/bid/107997Third Party Advisory · VDB Entry
→
https://support.symantec.com/en_US/article.SYMSA1479.htmlVendor Advisory

Quick Facts

CVE IDCVE-2018-18369
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-426
CISA KEVNo
Affected1 vendor(s)
PublishedApr 25, 2019

Related CVEs (CWE-426)

CVE-2023-26036
9.8
CVE-2024-35260
9.8
CVE-2011-4125
9.8
CVE-2025-26155
9.8
CVE-2022-3734
9.8
CVE-2022-26184
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-18369 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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