HOMEVULNERABILITIESCVE-2015-8991
HIGH

CVE-2015-8991

CWE-264Published: March 14, 2017· Updated: Jun 17, 2026

7.0
CVSS v3.1

Official Description

Malicious file execution vulnerability in Intel Security McAfee Security Scan+ (MSS+) before 3.11.266.3 allows attackers to make the product momentarily vulnerable via executing preexisting specifically crafted malware during installation or uninstallation, but not during normal operation.

NVD Source

Technical Analysis

CVE-2015-8991 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

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 7.0.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityHigh
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

mcafee3 product(s)
security webadvisorcloud avsecurity scan plus
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

ADVISORYhttps://service.mcafee.com/webcenter/portal/cp/home/articleview?articleId=TS102462
ADVISORYhttps://service.mcafee.com/webcenter/portal/cp/home/articleview?articleId=TS102462

All References (2)

→
https://service.mcafee.com/webcenter/portal/cp/home/articleview?articleId=TS102462Vendor Advisory
→
https://service.mcafee.com/webcenter/portal/cp/home/articleview?articleId=TS102462Vendor Advisory

Quick Facts

CVE IDCVE-2015-8991
CVSS Score7.0 / 10
SeverityHIGH
WeaknessCWE-264
CISA KEVNo
Affected1 vendor(s)
PublishedMar 14, 2017

Related CVEs (CWE-264)

CVE-2010-1505
10.0
CVE-2002-0012
10.0
CVE-2009-2675
10.0
CVE-2003-1595
10.0
CVE-2008-7173
10.0
CVE-2003-1081
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2015-8991 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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