What is CVE-2026-94591?

CVE-2026-94591 is Armatura LLC Armatura One Use of Hard-coded Cryptographic Key. The supplied enrichment data classifies it as Unclassified mapped to CWE-321 CWE-321.

Which versions are affected?

Affected product and version evidence is listed in the product table above. Current public advisories should be checked for exact version scope before patch targeting is finalized.

Is there active exploitation?

Active exploitation is not confirmed from current sources for CVE-2026-94591. If exploitation is not confirmed from current sources, teams should document that status and continue monitoring KEV, vendor, and telemetry updates.

No. CVE-2026-94591 is not listed in CISA KEV in the supplied enrichment data. KEV status should be monitored because it can change after initial disclosure or after exploitation becomes publicly confirmed.

Is there a public exploit?

1 public PoC repositories reported; 0 marked weaponized in current dataset. Public exploit or PoC availability should raise triage priority, especially for exposed or business-critical systems.

How can defenders detect it?

Start with Not reported where available. Look for vulnerability-class behavior, product errors, suspicious authentication events, exploit probes, and abnormal process activity based only on evidence that applies to the affected product.

How should teams prioritize it?

Prioritize CVE-2026-94591 using CVSS 8.4, EPSS 0%, KEV status, public PoC status, and asset exposure. Internet-facing, privileged, or business-critical deployments should be handled first.

Are workarounds available?

Workarounds are not confirmed from current sources. Fixed-version evidence is listed in the mitigation section above.

Which threat actors are linked publicly?

No public threat actor linkage is confirmed from current sources. Do not attribute exploitation to a threat actor unless the source evidence explicitly supports that linkage.

What should be done in the next 24 hours?

Identify exposed assets running affected vendor/product/version combinations. Prioritize based on EPSS, PoC availability, and external exposure. Search available logs for exploit probes, errors, authentication anomalies, or suspicious child processes matching the vulnerability class. Open remediation tickets with affected assets, owners, evidence status, and detection coverage so decisions are traceable.

highpublic exploit

CVE-2026-94591

CVE-2026-94591 — Armatura LLC Armatura One Use of Hard-coded Cryptographic Key

Armatura One stores database and message-broker credentials in an install configuration file, encrypting them with AES-128-CBC when this protection is enabled. The encryption key and initialization vector are fixed values embedded in the software itself and are identical across every installation. An attacker with a copy of the installation package can recover this key and initialization vector, and can then decrypt the stored credentials of any specific installation to which the attacker separately obtains the encrypted configuration file.

Published Oct 2, 2026Updated Oct 2, 2026Sources: NVD, Armatura LLC (CNA), GitHub, SOCRadar CTI

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the scoring sources call it.

Exploitation

Exploit code

public exploit, none observed

EPSS

ahead of 0% of scored CVEs

Affects

Armatura LLC

4 products listed

CVSS base

8.4

high · 2 sources

Remediation

The vendor's own words where we have them.

Armatura LLC has released Armatura One V4.7.2, which resolves this issue. Users should upgrade from V4.7.1 or earlier to V4.7.2. Armatura LLC has released Armatura One V4.6.1_USA, which resolves this issue. Users of the USA release line should upgrade from V4.3.1_USA or earlier to V4.6.1_USA. Armatura LLC recommends contacting official technical support for guidance on obtaining and applying the upgrade.

First 24 hours

Ordered from the record's own fields — exposure first, because you cannot patch what you have not found.

Identify exposed assets running affected vendor/product/version combinations.
Prioritize based on EPSS, PoC availability, and external exposure.
Search available logs for exploit probes, errors, authentication anomalies, or suspicious child processes matching the vulnerability class.

Affected scope

Vendor, product and version as the advisories word them.

Vendor	Product	Versions	Status
Armatura LLC	Armatura One	0 to < 4.7.2	Vulnerable
Armatura LLC	Armatura One	4.7.2	Patched
Armatura LLC	Armatura One (USA)	0 to < 4.6.1	Vulnerable
Armatura LLC	Armatura One (USA)	4.6.1_USA	Patched

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Availability

High

Confidentiality

High

Integrity

High

Scope

Unchanged

Attack Complexity

Low

Attack Vector

Local

Privileges Req

None

User Interaction

None

Every base score collected

Sources score independently and disagree; each row says who scored it and under which version.

Score	Version	Severity	Expl.	Impact	Source
8.4	CVSS 3.1	high	2.5	5.9	hq.dhs.gov (CNA), Armatura LLC (CNA)
8.6	CVSS 4.0	high	—	—	Armatura LLC (CNA)

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What this weakness leads to

MITRE's own consequences and mitigations for the weakness class — the authority's wording, not guidance derived from the CVSS vector.

MITRE

CWE-321 · Use of Hard-coded Cryptographic Key

Bypass Protection Mechanism
Gain Privileges or Assume Identity

Mitigation: Prevention schemes mirror that of hard-coded password storage.::

Weakness & attack patterns

CWE-321

Public exploit

Capability, not use: code existing is a different claim from anyone running it.

Repositories

Detection

Read off the CVSS vector and the weakness class. Starting points, not rules we have tested.

Monitor for scanner or exploit-pattern traffic after 1 public PoC repositories were reported.

Timeline

What happened to this CVE, newest first — with the readings a source repeats on a schedule counted underneath rather than listed.

2026
Added · CVSS 3.1 8.4 (AV:L)
Oct 2, 2026 · NVD
Initial · CVE published
Oct 2, 2026 · NVD
CVE published by MITRE.
Oct 2, 2026 · SOCRadar CTI

References

2 on the record

github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-274-01.json
Exploit, Third Party Advisory, NIST
www.cisa.gov/news-events/ics-advisories/icsa-26-274-01
US Government Resource, NIST

Elsewhere on this site

Armatura LLCevery CVE for this vendor
Unclassifiedsame class
CWE-321other pages naming this weakness

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record1

What should defenders know first?

CVE-2026-94591 is Armatura LLC Armatura One Use of Hard-coded Cryptographic Key, a high vulnerability affecting Armatura One, Armatura One (USA) from Armatura LLC. The current evidence does not list it in CISA KEV, and the exploit status is: Active exploitation is not confirmed from current sources for CVE-2026-94591. Public exploit evidence is: 1 public PoC repositories reported; 0 marked weaponized in current dataset. The affected-version evidence is listed in the key facts and affected products tables. Defenders should first verify whether exposed or business-critical assets run those versions, then apply vendor patches or mitigations, restrict reachable attack surface, and preserve logs for detection review. CVSS 8.4 describes technical severity, while EPSS 0% helps estimate near-term exploit likelihood; neither replaces asset context. Unknown fields should remain explicit in tickets, and threat actor, IOC, victimology, or payload claims should not be added unless a cited source supports them. Monitor CISA KEV, vendor advisories, NVD changes, public PoC repositories, and internal telemetry for update triggers.