PatchTheCVECVE-2019-16398: On Keeper K5 20.1.0.25 and 20.1.0.63 devices, remote code execution can occur by inserting an SD card containi
CVE-2019-16398 is a medium-severity flaw (CVSS 6.8) affecting k5 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
On Keeper K5 20.1.0.25 and 20.1.0.63 devices, remote code execution can occur by inserting an SD card containing a file named zskj_script_run.sh that executes a reverse shell.
Why this priority
- Public exploit reference
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 6.8 (Medium) |
| Attack vector | Physical |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.8% (top 43%) |
| CISA exploited list | No |
| Weakness | CWE-345 |
| Published | 2019-09-19 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2019-16398?
k5 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2019-16398 being exploited?
CVE-2019-16398 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2019-16398 affect?
CVE-2019-16398 affects k5 firmware. Severity is medium (CVSS 6.8). On Keeper K5 20.1.0.25 and 20.1.0.63 devices, remote code execution can occur by inserting an SD card containing a file named zskj_script_run.sh that executes a reverse shell.
How urgent is CVE-2019-16398?
Priority 43/100. Public exploit reference