Hetronic Nova-M prior to verson r161 uses fixed codes that are reproducible by sniffing and re-transmission.

published 2019-01-25 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-10741

cvss: 8.8; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 55%
public exploits: 0; none known

Hetronic Nova-M prior to verson r161 uses fixed codes that are reproducible by sniffing and re-transmission. This can lead to unauthorized replay of a command, spoofing of an arbitrary message, or keeping the controlled load in a permanent "stop" state.

Patch / fix

fixed in 5

hetronic nova-m_firmware r161
hetronic es-can-hl_firmware main_r1864
hetronic bms-hl_firmware main_r1175
hetronic mlc_firmware main_r1600
hetronic dc_mobile_firmware main_r515

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-19-003-03 updated 2019-01-03 cvss 7.6

Hetronic Nova-M

Hetronic BMS-HL < Main r1175 Estop_v24 Hetronic DC Mobile < Main r515 Estop_v24 Hetronic ES-CAN-HL < Main r1864 Estop_v24 Hetronic MLC < Main r1600 Estop_v24 Hetronic Nova-M < r161
affected: vendor fix, mitigation “Hetronic recommends that all Nova-M users update their radio transmitters to firmware version r161”

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

0.75% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.0	8.8	CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	5.8	AV:A/AC:L/Au:N/C:P/I:P/A:P

Affected products

Hetronic Hetronic Nova-M

Classification

Weakness

CWE-294 Authentication Bypass by Capture-replay
CWE-287 Improper Authentication

References

ics-cert.us-cert.gov /advisories/ICSA-19-003-03
third-party-advisory, us-government-resource
securityfocus.com /bid/106448
vdb-entry, third-party-advisory

Sources

CVE List CVE-2018-19023
NVD CVE-2018-19023

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary