ICSMA-21-343-01 Hillrom Welch Allyn Cardio Products
The impacted products, when configured to use SSO, are affected by an improper authentication vulnerability. This vulnerability allows the application to accept manual entry of any active directory (AD) account provisioned in the application without supplying a password, resulting in access to the application as the supplied AD account, with all associated privileges.
- Published
- Dec 15, 2021
- Updated
- Jun 17, 2026
- EPSS
- 1.1% · 64th percentile
- CWE
- CWE-288
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Report tools
Action score
39
Monitor
Low priority for now.
- CVSS
- 39 / 40 · 9.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 1.1%
CNA vs NVD score
- NVD
- 9.8
- CNA · icscert
- 8.1
- 1.7 point gap
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| baxter | welch allyn connex cardio | cpe:2.3:a:baxter:welch_allyn_connex_cardio |
| baxter | welch allyn diagnostic cardiology suite | cpe:2.3:a:baxter:welch_allyn_diagnostic_cardiology_suite |
| baxter | welch allyn rscribe resting ecg system | cpe:2.3:a:baxter:welch_allyn_rscribe_resting_ecg_system |
| baxter | welch allyn vision express holter analysis system | cpe:2.3:a:baxter:welch_allyn_vision_express_holter_analysis_system |
| baxter | welch allyn hscribe holter analysis system firmware | cpe:2.3:o:baxter:welch_allyn_hscribe_holter_analysis_system_firmware |
| baxter | welch allyn hscribe holter analysis system | cpe:2.3:h:baxter:welch_allyn_hscribe_holter_analysis_system |
| baxter | welch allyn q-stress cardiac stress testing system firmware | cpe:2.3:o:baxter:welch_allyn_q-stress_cardiac_stress_testing_system_firmware |
| baxter | welch allyn q-stress cardiac stress testing system | cpe:2.3:h:baxter:welch_allyn_q-stress_cardiac_stress_testing_system |
| baxter | welch allyn xscribe cardiac stress testing system firmware | cpe:2.3:o:baxter:welch_allyn_xscribe_cardiac_stress_testing_system_firmware |
| baxter | welch allyn xscribe cardiac stress testing system | cpe:2.3:h:baxter:welch_allyn_xscribe_cardiac_stress_testing_system |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- baxter welch allyn connex cardio1.0.0 and later · up to 1.1.1 inclusive
- baxter welch allyn diagnostic cardiology suite2.1.0
- baxter welch allyn hscribe holter analysis system firmware5.01 and later · up to 6.4.0 inclusive
- baxter welch allyn q-stress cardiac stress testing system firmware6.0.0 and later · up to 6.3.1 inclusive
- baxter welch allyn rscribe resting ecg system5.01 and later · up to 7.0.0 inclusive
- baxter welch allyn vision express holter analysis system6.1.0 and later · up to 6.4.0 inclusive
- baxter welch allyn xscribe cardiac stress testing system firmware5.01 and later · up to 6.3.1 inclusive
Versions reported by the vendor
Affected version ranges reported by the assigning authority (icscert). Independent of NVD's CPE analysis and usually ahead of it.
Hillrom Welch Allyn Connex Cardio
- 1.0.0 and later · up to and including 1.1.1affected
Hillrom Welch Allyn Diagnostic Cardiology Suite
- 2.1.0affected
Hillrom Welch Allyn H-Scribe Holter Analysis System
- 5.01 and later · up to and including 6.4.0affected
Hillrom Welch Allyn Q-Stress Cardiac Stress Testing System
- 6.0.0 and later · up to and including 6.3.1affected
Hillrom Welch Allyn R-Scribe Resting ECG System
- 5.01 and later · up to and including 7.0.0affected
Hillrom Welch Allyn Vision Express
- 6.1.0 and later · up to and including 6.4.0affected
Hillrom Welch Allyn X-Scribe Cardiac Stress Testing System
- 5.01 and later · up to and including 6.3.1affected
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-288 · Authentication Bypass Using an Alternate Path or ChannelCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.