Is CVE-2021-43935 actively exploited?

No active exploitation of CVE-2021-43935 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-43935 be exploited remotely?

Yes. CVE-2021-43935 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-43935?

CVE-2021-43935 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2021-43935

CRITICAL

CVE-2021-43935

CWE-288Published: December 15, 2021· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2021-43935 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Affected Vendors & Products

baxter10 product(s)

welch allyn connex cardiowelch allyn diagnostic cardiology suitewelch allyn rscribe resting ecg systemwelch allyn vision express holter analysis systemwelch allyn hscribe holter analysis system firmwarewelch allyn hscribe holter analysis systemwelch allyn q-stress cardiac stress testing system firmwarewelch allyn q-stress cardiac stress testing systemwelch allyn xscribe cardiac stress testing system firmwarewelch allyn xscribe cardiac stress testing system

Source: NVD CPE · 10 total CPE entries