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01 Record

CVE-2021-27410

The affected product is vulnerable to an out-of-bounds write, which may result in corruption of data or code execution on the Welch Allyn medical device management tools (Welch Allyn Service Tool:

UnratedPUBLISHEDCNA: icscert
CNA base scoreUnratedNo CNA CVSS vector
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02 Description

The affected product is vulnerable to an out-of-bounds write, which may result in corruption of data or code execution on the Welch Allyn medical device management tools (Welch Allyn Service Tool:

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
1.85% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 79.0% of scored records. A rank, not a probability.
NVD base score
9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-06-11 16:33Z5 YR AGO
Last updated
2024-08-03 20:48Z2 YR AGO
Reserved
2021-02-19
Assigning CNA
icscert
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
Data version
5.1
Document digest
901df65168f684fb699b0210c0b2acb5585b644c4b8bc57db716a9ae18f34e9f

05 Affected products

VendorProductVersionsPlatforms
n/aWelch Allyn medical device management toolsWelch Allyn Service Tool: versions prior to v1.10, Welch Allyn Connex Device Integration Suite – Network Connectivity Engine (NCE): versions prior to v5.3, Welch Allyn Software Development Kit (SDK): versions prior to v3.2, Welch Allyn Connex Central Station (CS): versions prior to v1.8.6, Welch Allyn Service Monitor: versions prior to v1.7.0.0, Welch Allyn Connex Vital Signs Monitor (CVSM): versions prior to v2.43.02, Welch Allyn Connex Integrated Wall System (CIWS): versions prior to v2.43.02, Welch Allyn Connex Spot Monitor (CSM): versions prior to v1.52, Welch Allyn Spot Vital Signs 4400 Device (Spot 4400) / Welch Allyn Spot 4400 Vital Signs Extended Care Device: versions prior to v1.11.00—

06 References