CVE-2019-15745: The Eques elf smart plug and the mobile app use a hardcoded AES 256 bit key to encrypt the commands and respon

This month

HIGH 8.8MITIGATE

CVE-2019-15745 is a high-severity flaw (CVSS 8.8) affecting elf smart plug firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Eques elf smart plug and the mobile app use a hardcoded AES 256 bit key to encrypt the commands and responses between the device and the app. The communication happens over UDP port 27431. An attacker on the local network can use the same key to encrypt and send commands to discover all smart plugs in a network, take over control of a device, and perform actions such as turning it on and off.

Why this priority

High severity
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	8.8 (High)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.4% (top 28%)
CISA exploited list	No
Weakness	CWE-798
Published	2019-08-29
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: equeshome

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-08-29 13:15 UTCPublished CVE record published
2026-06-17 02:20 UTCUpdated Record last modified

equeshome elf smart plug firmware MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
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-2019-15745?

elf smart plug firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2019-15745 being exploited?

CVE-2019-15745 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-2019-15745 affect?

CVE-2019-15745 affects elf smart plug firmware. Severity is high (CVSS 8.8). The Eques elf smart plug and the mobile app use a hardcoded AES 256 bit key to encrypt the commands and responses between the device and the app. The communication happens over UDP port 27431. An attacker on the local network can use the sa

How urgent is CVE-2019-15745?

Priority 54/100. High severity; Public exploit reference

References

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