MEDIUM
CVE-2016-0921
CWE-264Published: September 21, 2016· Updated: Jun 17, 2026
6.5
CVSS v3.1
Official Description
Avamar Data Store (ADS) and Avamar Virtual Edition (AVE) in EMC Avamar Server before 7.3.0-233 use weak permissions for unspecified directories, which allows local users to obtain root access by replacing a script with a Trojan horse program.
Technical Analysis
CVE-2016-0921 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires high 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 6.5.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.High
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
Affected Vendors & Products
emc1 product(s)
avamar server
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
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PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories
All References (6)
→
http://seclists.org/bugtraq/2016/Sep/31Third Party Advisory · VDB Entry
→
http://seclists.org/bugtraq/2016/Sep/31Third Party Advisory · VDB Entry
Quick Facts
CVE IDCVE-2016-0921
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-264
CISA KEVNo
Affected1 vendor(s)
PublishedSep 21, 2016
Related CVEs (CWE-264)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2016-0921 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.