CVE-2016-8021
CWE-347Published: March 14, 2017· Updated: Jun 17, 2026
Official Description
Improper verification of cryptographic signature vulnerability in Intel Security VirusScan Enterprise Linux (VSEL) 2.0.3 (and earlier) allows remote authenticated users to spoof update server and execute arbitrary code via a crafted input file.
Technical Analysis
CVE-2016-8021 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 full integrity compromise (data manipulation), with a CVSS base score of 5.0.
A proof-of-concept (PoC) exploit exists for CVE-2016-8021. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (8)
Quick Facts
Related CVEs (CWE-347)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2016-8021 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts