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CVE-2022-27254: The remote keyless system on Honda Civic 2018 vehicles sends the same RF signal for each door-open request, wh

40
This month
MEDIUM 5.3MITIGATE

CVE-2022-27254 is a medium-severity flaw (CVSS 5.3) affecting civic 2018 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The remote keyless system on Honda Civic 2018 vehicles sends the same RF signal for each door-open request, which allows for a replay attack, a related issue to CVE-2019-20626.

Why this priority

  • Public exploit reference

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

Risk facts

CVSS score5.3 (Medium)
Attack vectorAdjacent network
Attack complexityHigh
Privileges neededNone
User interactionNone
EPSS exploit chance1.0% (top 36%)
CISA exploited listNo
WeaknessCWE-294
Published2022-03-23
Last modified2026-06-17
Publisher (CNA): MITRE · Vendor: honda

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

Am I affected?

Timeline

honda civic 2018 firmware 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-2022-27254?

civic 2018 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-27254 being exploited?

CVE-2022-27254 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-2022-27254 affect?

CVE-2022-27254 affects civic 2018 firmware. Severity is medium (CVSS 5.3). The remote keyless system on Honda Civic 2018 vehicles sends the same RF signal for each door-open request, which allows for a replay attack, a related issue to CVE-2019-20626.

How urgent is CVE-2022-27254?

Priority 40/100. Public exploit reference

References

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