Threats / D-Link / CVE-2016-11021
CVE-2016-11021
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
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.
01
Is it exploitable?
— the evidence, ranked above the scoreReported exploitation
32 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 0.68525 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: D-Link, DCS-930L Devices. Confirm exact fixed builds in the vendor advisory.
Weakness (CWE)
Mapped to CWE-78 OS Command Injection — weakness family: Injection.CWE assignment from the public NVD record; the weakness class drives how the flaw is exploited.
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