CVE-2023-6448
Confirmed PUBLISHEDUnitronics VisiLogic uses a default administrative password
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
Unitronics VisiLogic before version 9.9.00, used in Vision and Samba PLCs and HMIs, uses a default administrative password. An unauthenticated attacker with network access can take administrative control of a vulnerable system.
- CVE Published
- Dec 05, 2023
- Exploitation Reported
- Dec 11, 2023
- CVSS
- 9.8 Critical
- EPSS
- —
Affected Versions
| Vendor | Product | Version | Status |
|---|---|---|---|
| unitronics |
visilogic
|
0 to < 9.9.00 |
Affected |
| Unitronics |
VisiLogic
|
0 to < 9.9.00 |
Affected |
CVE References
- Vendor Advisory — downloads.unitronicsplc.com downloads.unitronicsplc.com · Vendor Advisory https://downloads.unitronicsplc.com/Sites/plc/Technical_Library/Unitr...
- Release Notes — downloads.unitronicsplc.com downloads.unitronicsplc.com · Release Notes https://downloads.unitronicsplc.com/Sites/plc/Visilogic/Version_Chang...
- Government Resource — cisa.gov cisa.gov · Government Resource https://www.cisa.gov/news-events/alerts/2023/11/28/exploitation-unitr...
- unitronicsplc.com/cyber_security_vision-samba unitronicsplc.com · CVE Record https://www.unitronicsplc.com/cyber_security_vision-samba/
Recommended Actions
- Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
- Check enrichment artifacts for scanner coverage and available PoCs before rolling remediation validation.
- Use the Pro API to automate enrichment, telemetry, and workflow delivery for VM, SOC, and CTI pipelines.
Known Exploited Vulnerability Sources
Catalogues that list this CVE as a known exploited vulnerability.
Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CISA First | 2023-12-11 00:00 UTC |
No detection artifacts or sensor request patterns are available for this CVE yet.
Check back as sensor telemetry and scanner integrations are updated.
Virtual Patch
Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.
KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.
Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.
CVSS Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitation Status
Exploited in the wild
Recorded 2023-12-11 00:00:00 UTC · CISA
Weaknesses (CWE)
-
Initialization of a Resource with an Insecure Default
Scanner Integrations
| Scanner | Reference | Detected |
|---|---|---|
| Nessus | https://www.tenable.com/plugins/nessus/191550 | Jun 02, 2025 |
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
09:26 UTC about 1 year ago09:26 UTC · about 1 year ago
Nessus plugin available
Scanner coverage available
-
00:00 UTC over 2 years ago00:00 UTC · over 2 years ago
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
17:43 UTC over 2 years ago17:43 UTC · over 2 years ago
CVE published
Vulnerability disclosed publicly
-
18:40 UTC over 2 years ago18:40 UTC · over 2 years ago
CVE ID reserved
Identifier reserved by the CNA
Automate This Intelligence with the Pro API
Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
Pro API Example
GET /api/v2/pro/kevs/CVE-2023-6448
{
"cve_id": "CVE-2023-6448",
"title": "Unitronics VisiLogic uses a default administrative password",
"affected_vendor": "Unitronics",
"affected_product": "VisiLogic",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "Confirmed",
"cvss_score": 9.8,
"epss_score": null,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}