CVE-2016-2398: Comcast XFINITY Home Security System does not properly maintain base-station communication, which allows physi

Routine

MEDIUM 6.5MITIGATE

CVE-2016-2398 is a medium-severity flaw (CVSS 6.5) affecting xfinity home security system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Comcast XFINITY Home Security System does not properly maintain base-station communication, which allows physically proximate attackers to defeat sensor functionality by interfering with ZigBee 2.4 GHz transmissions.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 51%)
CISA exploited list	No
Weakness	CWE-254
Published	2016-02-17
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: comcast

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

Am I affected?

Timeline

2016-02-17 16:59 UTCPublished CVE record published
2026-06-17 00:43 UTCUpdated Record last modified

comcast xfinity home security system MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

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-2016-2398?

xfinity home security system: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2016-2398 being exploited?

CVE-2016-2398 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-2016-2398 affect?

CVE-2016-2398 affects xfinity home security system. Severity is medium (CVSS 6.5). Comcast XFINITY Home Security System does not properly maintain base-station communication, which allows physically proximate attackers to defeat sensor functionality by interfering with ZigBee 2.4 GHz transmissions.

How urgent is CVE-2016-2398?

Priority 35/100. No elevated risk signals yet.

References

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