CVE-2019-9196: The Face authentication component in Aware mobile liveness 2.2.1 sdk 2.2.0 for Knomi allows a Biometrical Live

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HIGH 7.5REMOTEDOWNGRADE

CVE-2019-9196 is a high-severity flaw (CVSS 7.5) affecting knomi. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Face authentication component in Aware mobile liveness 2.2.1 sdk 2.2.0 for Knomi allows a Biometrical Liveness authentication bypass via parameter tampering of the /knomi/analyze security_level field.

Why this priority

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

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.1% (top 18%)
CISA exploited list	No
Published	2019-05-15
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: aware

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

Am I affected?

Timeline

2019-05-15 20:29 UTCPublished CVE record published
2026-06-17 02:43 UTCUpdated Record last modified

aware knomi DOWNGRADE

Affected: 2.2.0 · 2.2.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.2.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.2.0 (Debian / Ubuntu)

apt-cache madison knomi sudo apt install knomi=<VERSION_BEFORE_2.2.0> sudo apt-mark hold knomi

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list knomi sudo dnf downgrade knomi-<VERSION_BEFORE_2.2.0> sudo dnf versionlock add knomi

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-2019-9196?

knomi: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2019-9196 being exploited?

CVE-2019-9196 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-2019-9196 affect?

CVE-2019-9196 affects knomi. Severity is high (CVSS 7.5). The Face authentication component in Aware mobile liveness 2.2.1 sdk 2.2.0 for Knomi allows a Biometrical Liveness authentication bypass via parameter tampering of the /knomi/analyze security_level field.

How urgent is CVE-2019-9196?

Priority 57/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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