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Fencer Vulns
medium 5.3

CVE-2025-6071 json

Hard Coded Key used for AES encryption

published 2025-07-03 16 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-19891

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 20%
public exploits
0
none known

Summary

Use of Hard-coded Cryptographic Key vulnerability in ABB RMC-100, ABB RMC-100 LITE.

An attacker can gain access to salted information to decrypt MQTT information. This issue affects RMC-100: from 2105457-043 through 2105457-045; RMC-100 LITE: from 2106229-015 through 2106229-016.

Vendor advisories

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

cisa ICSA-25-196-02 updated cvss 5.3

ABB RMC-100 (Update A)

  • ABB RMC-100 >=2105457-043, <=2105457-045 ABB RMC-100 LITE >=2106229-015, <=2106229-016
    affected: vendor fix
  • ABB RMC-100 2105457-046 ABB RMC-100 LITE 2106229-018
    fixed

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
16 mo ago

Exploit prediction

0.28% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 6.3 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CNA 4.0 6.3 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • ABB RMC-100
  • ABB RMC-100 LITE

Classification

Weakness
  • CWE-321 Use of Hard-coded Cryptographic Key

References

Sources

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.