Security readout for executives and security teams
Plain-English summary
This vulnerability affects D-Link DCS-930L cameras running firmware before 2.12. A privileged remote attacker could abuse a system command feature to run operating-system commands on the device. Because CISA lists CVE-2016-11021 in KEV, organizations should treat exposed legacy cameras as a priority risk.
Executive priority
Prioritize remediation for any internet-accessible or business-critical DCS-930L cameras. KEV status means this is not theoretical, even though exploitation requires privileged access.
Technical view
CVE-2016-11021 is CWE-78 OS command injection in setSystemCommand on D-Link DCS-930L firmware before 2.12. The issue is network reachable, low complexity, requires high privileges, and can impact confidentiality, integrity, and availability. Public exploit material is referenced by Exploit-DB, and CISA KEV confirms known exploitation.
Likely exposure
Exposure is limited to D-Link DCS-930L devices running firmware earlier than 2.12, especially where administrative interfaces are reachable over a network. The provided affected-product metadata is incomplete, so inventory confirmation is important.
Exploitation context
CISA KEV supports known exploitation. Exploit-DB is cited as a public reference, but this analysis does not rely on exploit details. The CVSS vector indicates attackers need high privileges but no user interaction.
Researcher notes
The bundle identifies D-Link DCS-930L before 2.12 despite affected CPE metadata being empty. Treat product mapping carefully and validate against asset inventory. Do not assume other D-Link models are affected without additional vendor evidence.
Mitigation direction
- Inventory D-Link DCS-930L devices and record firmware versions.
- Update devices below firmware 2.12 following D-Link guidance.
- Restrict camera administrative interfaces to trusted management networks.
- Remove or replace unsupported exposed devices if updates are unavailable.
- Review account access and remove unnecessary privileged credentials.
Validation and detection
- Confirm whether any DCS-930L devices run firmware before 2.12.
- Check whether camera admin interfaces are reachable from untrusted networks.
- Review logs for suspicious use of setSystemCommand or SystemCommand activity.
- Verify updated or retired devices no longer appear in exposed asset scans.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-78: Command execution behavior lookup
Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2016-11021 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.2 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H1.25.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.2HighVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.exploit-db.com/exploits/39437CVE reference · x_refsource_MISC
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-11021CVE reference · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.