Symantec Norton Security/Endpoint Protection Kernel Memory IRP Request information disclosure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability was found in Symantec Norton Security and Endpoint Protection (Anti-Malware Software) (the affected version unknown). It has been classified as problematic. This affects an unknown code block of the component Kernel Memory Handler. The manipulation as part of a IRP Request leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. This is going to have an impact on confidentiality.

The bug was discovered 04/23/2019. The weakness was disclosed 04/15/2019 by Cisco with Cisco Talos as SYMSA1479 as confirmed security advisory (Website). The advisory is shared at This vulnerability is uniquely identified as CVE-2018-18366 since 10/15/2018. An attack has to be approached locally. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 371759 (Symantec SEP Cloud Vulnerabilities and Norton Security for Windows(SYMSA1479)).

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 107994). The entries 134052 and 134098 are pretty similar.





CPE 2.3infoedit

CPE 2.2infoedit


VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 4.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Symantec): 4.3
Vendor Vector (Symantec): 🔍

NVD Base Score: 6.5
NVD Vector: 🔍



VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍


Class: Information disclosure
CWE: CWE-200
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍


Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfoedit

Threat: 🔍
Adversaries: 🔍
Geopolitics: 🔍
Economy: 🔍
Predictions: 🔍
Remediation: 🔍


Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍



10/15/2018 🔍
04/15/2019 +182 days 🔍
04/15/2019 +0 days 🔍
04/23/2019 +8 days 🔍
04/23/2019 +0 days 🔍
04/26/2019 +3 days 🔍
06/02/2020 +403 days 🔍



Advisory: SYMSA1479
Researcher: Cisco
Organization: Cisco Talos
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-18366 (🔍)
SecurityFocus: 107994 - Multiple Symantec Products CVE-2018-18366 Local Information Disclosure Vulnerability

See also: 🔍


Created: 04/26/2019 08:16 AM
Updated: 06/02/2020 03:14 PM
Changes: (5) vulnerability_discoverydate advisory_company_name advisory_confirm_url source_securityfocus_date source_securityfocus_class
Complete: 🔍


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