Threats / D-Link / CVE-2016-11021
CVE-2016-11021
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-08-04
D-Link DCS-930L Devices vulnerability
D-Link DCS-930L devices contain an OS command injection vulnerability in the setSystemCommand function, allowing remote code execution.
Verdict
Today item — known-exploited.
A remote attacker can execute arbitrary operating system commands on affected D-Link DCS-930L network cameras through the setSystemCommand interface without authentication, leading to complete device compromise.
CISA KEV Yes · 2022-03-254EPSS 0.6887 (verify live)5CVSS 7.2 (CISA)3CISA SSVC Exploitation: active · Automatable: no · Impact: total3Exploit Weaponized · public exploit · Metasploit module11
01
Is it exploitable?
— the evidence, ranked above the scoreReported exploitation
34 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-25).
Probability (EPSS)
EPSS 0.6887 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
CVSS 7.2 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H) · Affected: D-Link, DCS-930L Devices. Confirm exact fixed builds in the vendor advisory.CVSS — CISA-assigned via the ADP container (CVE.org), version 3.1; the CNA left no metrics, so CISA's own score is used ahead of NVD.
Weakness (CWE)
Mapped to CWE-78 OS Command Injection — weakness family: Injection.CWE assignment from the public NVD record (may be stale); the weakness class drives how the flaw is exploited.
CISA SSVC (triage disposition)
Exploitation: active · Automatable: no · Technical Impact: totalCISA's own stakeholder-specific triage inputs, published in the CVE record (CISA Coordinator role). NOTE: this is CISA's three decision points; the final Act/Attend/Track decision also requires a Mission & Well-being input not published here, so no overall decision is asserted.
Currency of the record
CISA added this to its KEV catalog 746 days after the CVE record was published.KEV lag = CISA-KEV dateAdded − CVE.org datePublished; a floor on how long the known-exploited flaw sat in the public record before the federal catalog listed it. Severity/weakness here is CNA- or CISA-assigned (current at disclosure), independent of NVD's analysis backlog.
Public exploit available
Public exploit tooling is catalogued for this CVE (a functional/weaponized public exploit). Catalog entries: Metasploit module. We link the catalog page(s) only — no payload or code is hosted or restated here.Link, never host — the catalog page is the source; basicsecurity.net does not redistribute payloads.
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I identify the D-Link DCS-930L device and locate the setSystemCommand endpoint.
Business
Network camera deployment lacks segmentation controls, exposing management interfaces to untrusted networks.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I craft a malicious request injecting OS commands into the setSystemCommand parameter.
Business
Insufficient input validation on device firmware creates direct path to kernel-level code execution.
3
Lateral reach — past segmentation narrative 3
Attacker
I execute arbitrary commands with device privileges, establishing persistent access or lateral movement.
Business
Compromised camera becomes pivot point for network reconnaissance and further infrastructure attacks.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05