CVE-2021-27410
No exploitation reported by the sources we read.
- Published2021-06-11
- Fixed in1.8.6
- WeaknessCWE-787
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
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: 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).
Timeline
dates in UTC- 2021-06-1117:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 21:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2021-27410?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-27410?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 1.8 | < 1.8.6 | 1.8.6 | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 5.3 | < 5.3 | 5.3 | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 2.43 | < 2.43.02 | 2.43.02 | NVD |
6 more products in the sources.
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Distribution builds and vendor advisories
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Vendor advisories
Hillrom Medical Device Management (Update B)
Welch Allyn Connex Spot Monitor (CSM): versions prior to v1.52 · Welch Allyn Connex Integrated Wall System (CIWS): versions prior to v2.43.02 · Welch Allyn Connex Vital Signs Monitor (CVSM): versions prior to v2.43.02 · +6 more
Fix
- Update Hillrom connex central station to 1.8.6
- Vendor fix CISA ICSMA-21-152-01 · 1 productWelch Allyn Service Tool: v1.10
- Vendor fix CISA ICSMA-21-152-01 · 1 productWelch Allyn Software Development Kit (SDK): v3.2
- Vendor fix CISA ICSMA-21-152-01 · 1 productWelch Allyn Connex Central Station (CS): v1.8.4 Service Pack 01 (released November 2022)
- Vendor fix CISA ICSMA-21-152-01 · 1 productWelch Allyn Connex Device Integration Suite - Network Connectivity Engine (NCE): v5.3 (released September 2021)
- Vendor fix CISA ICSMA-21-152-01 · 1 productWelch Allyn Spot Vital Signs 4400 Device (Spot 4400) / Welch Allyn Spot 4400 Vital Signs Extended Care Device: v1.11.00 (Released October 2021)
- Vendor fix CISA ICSMA-21-152-01 · 1 productWelch Allyn Service Monitor: v1.7.0.0
Advisories and patches
- us-cert.cisa.govMitigation
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
- NVDCVSS 3.19.8read 2026-10-23
- NVDCVSS 2.07.5read 2026-10-23
- CNAweakness (CWE)CWE-787read 2026-10-23
- FIRST EPSSEPSS score1.9 %2026-10-23
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Published
- 2021-06-11
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2021-27410?
Is CVE-2021-27410 actively exploited?
What is the CVSS score for CVE-2021-27410?
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.