CVE-2019-9657: Alarm.com ADC-V522IR 0100b9 devices have Incorrect Access Control, a different issue than CVE-2018-19588

Routine

HIGH 7.8MITIGATE

CVE-2019-9657 is a high-severity flaw (CVSS 7.8) affecting adc-v522ir firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Alarm.com ADC-V522IR 0100b9 devices have Incorrect Access Control, a different issue than CVE-2018-19588. This occurs because of incorrect protection of VPN certificates (used for initiating a VPN session to the Alarm.com infrastructure) on the local camera device.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 83%)
CISA exploited list	No
Weakness	CWE-522
Published	2019-07-11
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: alarm

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

Am I affected?

Timeline

2019-07-11 19:15 UTCPublished CVE record published
2026-06-17 02:44 UTCUpdated Record last modified

alarm adc-v522ir firmware MITIGATE

Affected: 0100b9

Fixed in: no fixed release known

Safe to downgrade to: a release before 0100b9

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

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-2019-9657?

adc-v522ir firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2019-9657 being exploited?

CVE-2019-9657 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-2019-9657 affect?

CVE-2019-9657 affects adc-v522ir firmware. Severity is high (CVSS 7.8). Alarm.com ADC-V522IR 0100b9 devices have Incorrect Access Control, a different issue than CVE-2018-19588. This occurs because of incorrect protection of VPN certificates (used for initiating a VPN session to the Alarm.com infrastructure) on

How urgent is CVE-2019-9657?

Priority 37/100. High severity; Public exploit reference

Related CVEs

CVE-2018-19588 HIGH 7.2 MITIGATE Alarm.com ADC-V522IR 0100b9 devices have Incorrect Access Control.

References

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