PatchSiren cyber security CVE debrief
CVE-2016-9871 Emc CVE debrief
CVE-2016-9871 is a privilege escalation vulnerability affecting EMC Isilon OneFS releases in the 7.1.0.x, 7.1.1.0-7.1.1.10, 7.2.0.x, and 7.2.1.0-7.2.1.3 lines. NVD rates the issue CVSS 3.0 7.2 High and classifies it as CWE-264, indicating an access-control and privilege-management weakness that could let an attacker compromise the affected system.
- Vendor
- Emc
- Product
- CVE-2016-9871
- CVSS
- HIGH 7.2
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2017-02-03
- Original CVE updated
- 2026-05-13
- Advisory published
- 2017-02-03
- Advisory updated
- 2026-05-13
Who should care
Storage administrators, infrastructure security teams, and IAM/privilege owners responsible for EMC Isilon OneFS deployments should prioritize this issue, especially where affected versions are still in production.
Technical summary
The NVD record describes a privilege escalation flaw in EMC Isilon OneFS and assigns CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H. That scoring indicates network-exploitable conditions with a high-privilege prerequisite, no user interaction, and potential for high confidentiality, integrity, and availability impact. NVD maps the weakness to CWE-264 (Permissions, Privileges, and Access Controls).
Defensive priority
High. Even though high privileges are required, successful exploitation could yield full compromise impact on an affected storage system, so exposed or legacy OneFS deployments should be treated as urgent remediation candidates.
Recommended defensive actions
- Inventory all EMC Isilon OneFS systems and confirm whether they fall within the affected version lines listed by NVD.
- Prioritize upgrade or vendor-recommended remediation for any affected OneFS instance still in service.
- Restrict administrative and privileged network access to OneFS management interfaces and limit who can obtain high-privilege access.
- Review logs and administrative activity for unexpected privilege changes, configuration changes, or other anomalous management actions.
- Validate current exposure against the linked vendor and advisory references, then document remediation status for each affected system.
Evidence notes
This debrief is based only on the supplied NVD CVE record and the linked references in the source corpus. The published CVE date is 2017-02-03; the 2026-05-13 modified date reflects later record maintenance, not the original issue date. No CISA KEV entry or ransomware-campaign attribution was provided in the corpus.
Official resources
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CVE-2016-9871 CVE record
CVE.org
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CVE-2016-9871 NVD detail
NVD
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Source item URL
nvd_modified
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Mitigation or vendor reference
[email protected] - Mailing List, Third Party Advisory
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Mitigation or vendor reference
[email protected] - Third Party Advisory, VDB Entry
CVE published on 2017-02-03. This debrief uses the CVE publication date for timing context and does not treat later record modifications as the original disclosure date.