CVE-2021-35193: Patterson Application Service in Patterson Eaglesoft 18 through 21 accepts the same certificate authentication

This week

HIGH 7.5REMOTEUPGRADE

CVE-2021-35193 is a high-severity flaw (CVSS 7.5) affecting eaglesoft. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Patterson Application Service in Patterson Eaglesoft 18 through 21 accepts the same certificate authentication across different customers' installations (that have the same software version). This provides remote access to SQL database credentials. (In the normal use of the product, retrieving those credentials only occurs after a username/password authentication step; however, this authentication step is on the client side, and an attacker can d

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.2% (top 33%)
CISA exploited list	No
Weakness	CWE-295
Published	2021-07-30
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: pattersondental

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-07-30 19:15 UTCPublished CVE record published
2026-06-17 03:57 UTCUpdated Record last modified

pattersondental eaglesoft UPGRADE

Affected: >= 18.0 and <= 21.0

Fixed in: newer than 21.0

Safe to downgrade to: a release before 18.0

1. Check installed version

apt-cache policy eaglesoft || rpm -q eaglesoft || eaglesoft --version

2. UPGRADE to newer than 21.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade eaglesoft

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade eaglesoft

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 18.0 (Debian / Ubuntu)

apt-cache madison eaglesoft sudo apt install eaglesoft=<VERSION_BEFORE_18.0> sudo apt-mark hold eaglesoft

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list eaglesoft sudo dnf downgrade eaglesoft-<VERSION_BEFORE_18.0> sudo dnf versionlock add eaglesoft

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-35193?

eaglesoft: upgrade to newer than 21.0. Exact commands for each OS are on this page.

Is CVE-2021-35193 being exploited?

CVE-2021-35193 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-35193 affect?

CVE-2021-35193 affects eaglesoft. Severity is high (CVSS 7.5). Patterson Application Service in Patterson Eaglesoft 18 through 21 accepts the same certificate authentication across different customers' installations (that have the same software version). This provides remote access to SQL database cred

How urgent is CVE-2021-35193?

Priority 53/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2022-37710 HIGH 7.8 DOWNGRADE Patterson Dental Eaglesoft 21 has AES-256 encryption but there are two ways to obtain a keyfile: (1) keybackup

References

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