CVE-2019-16057
CRITICALCVE-2019-16057 is a critical-severity (CVSS 9.8) OS Command Injection vulnerability. It is in CISA's Known Exploited Vulnerabilities catalog (added 2022-04-15) and has been used in ransomware campaigns — treat it as actively exploited and patch now. No vendor fix is recorded yet; mitigation options are listed below.
The login_mgr.cgi script in D-Link DNS-320 through 2.05.B10 is vulnerable to remote command injection.
Exploitation Status
Actively exploited in the wild
- Confirmed by CISA's Known Exploited Vulnerabilities catalog on 2022-04-15 — including use in ransomware campaigns. Federal agencies were required to remediate by 2022-05-06.
- CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
- A successful exploit gives an attacker total control of the affected component, not partial access.
Exploitation and automatability from CISA (KEV catalog and SSVC triage) for CVE-2019-16057.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
CVE-2019-16057 by exploitation likelihood (EPSS) against impact (CVSS). In the shaded patch-first corner (EPSS 50%+, CVSS 7.0+).
Where this sits among everything scored
Of 394,415 CVEs with a current EPSS score, this one falls in the 50–90% band (highlighted). Counts from FIRST.org, log-scaled.
Description
The login_mgr.cgi script in D-Link DNS-320 through 2.05.B10 is vulnerable to remote command injection.
Affected Products
dns-320 firmwaredlinkResearch use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Detection & mitigation playbook
VulnerabilityDetect
Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).
Remediation status
No fixed release is recorded for CVE-2019-16057 yet. Track the upstream advisory, and apply the exposure-reduction steps below in the meantime.
Mitigate without a patch
Stop passing untrusted input into the interpreter or shell: call the affected binary with an argument array rather than a composed command string, reject anything outside a strict allowlist of expected values, and run the component under an account that cannot reach beyond the work it legitimately does.
How to detect CVE-2019-16057
A community-maintained Nuclei template exists for this CVE. You can scan for it directly:
nuclei -id cve-2019-16057 -u https://target- Template
- D-Link DNS-320 - Remote Code Execution
- Severity
- critical
- Impact
- Successful exploitation of this vulnerability can lead to unauthorized access, data loss, and potential compromise of the affected device.
- Remediation
- Apply the latest firmware update provided by D-Link to mitigate this vulnerability.
Template by ProjectDiscovery nuclei-templates (DhiyaneshDk), MIT licensed. View the full template. Scan only systems you are authorised to test.
Frequently Asked Questions
Is CVE-2019-16057 in your dependencies?
Find it across , including transitive dependencies.