HOMEVULNERABILITIESCVE-2018-12240
MEDIUM

CVE-2018-12240

CWE-798Published: August 29, 2018· Updated: Jun 17, 2026

5.9
CVSS v3.1

Official Description

The Norton Identity Safe product prior to 5.3.0.976 may be susceptible to a privilege escalation issue via a hard coded IV, which is a type of vulnerability that can potentially increase the likelihood of encrypted data being recovered without adequate credentials.

NVD Source

Technical Analysis

CVE-2018-12240 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 5.9.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityHigh
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected Vendors & Products

symantec1 product(s)
norton password manager
Source: NVD CPE · 1 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/105146
ADVISORYhttps://support.symantec.com/en_US/article.SYMSA1460.html
ADVISORYhttp://www.securityfocus.com/bid/105146
ADVISORYhttps://support.symantec.com/en_US/article.SYMSA1460.html

All References (4)

→
http://www.securityfocus.com/bid/105146Third Party Advisory · VDB Entry
→
https://support.symantec.com/en_US/article.SYMSA1460.htmlMitigation · Vendor Advisory
→
http://www.securityfocus.com/bid/105146Third Party Advisory · VDB Entry
→
https://support.symantec.com/en_US/article.SYMSA1460.htmlMitigation · Vendor Advisory

Quick Facts

CVE IDCVE-2018-12240
CVSS Score5.9 / 10
SeverityMEDIUM
WeaknessCWE-798
CISA KEVNo
Affected1 vendor(s)
PublishedAug 29, 2018

Related CVEs (CWE-798)

CVE-2023-1748
10.0
CVE-2021-40519
10.0
CVE-2014-9198
10.0
CVE-2018-0222
10.0
CVE-2020-6779
10.0
CVE-2026-22769
KEV10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-12240 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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