CVE-2022-35122: An access control issue in Ecowitt GW1100 Series Weather Stations <=GW1100B_v2.1.5 allows unauthenticated atta

Q: How do I fix CVE-2022-35122?

gw1100 firmware: upgrade to newer than 2.1.5. Exact commands for each OS are on this page.

Q: Is CVE-2022-35122 being exploited?

CVE-2022-35122 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2022-35122 affect?

CVE-2022-35122 affects gw1100 firmware. Severity is critical (CVSS 9.1). An access control issue in Ecowitt GW1100 Series Weather Stations <=GW1100B_v2.1.5 allows unauthenticated attackers to access sensitive information including device and local WiFi passwords.

Q: How urgent is CVE-2022-35122?

Priority 58/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

CRITICAL 9.1REMOTEUPGRADE

CVE-2022-35122 is a critical-severity flaw (CVSS 9.1) affecting gw1100 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An access control issue in Ecowitt GW1100 Series Weather Stations <=GW1100B_v2.1.5 allows unauthenticated attackers to access sensitive information including device and local WiFi passwords.

Why this priority

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

A fixed release or distro patch exists.

Risk facts

CVSS score	9.1 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.1% (top 34%)
CISA exploited list	No
Weakness	CWE-306
Published	2022-08-17
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: ecowitt

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

Am I affected?

Timeline

2022-08-17 21:15 UTCPublished CVE record published
2026-06-17 04:51 UTCUpdated Record last modified

ecowitt gw1100 firmware UPGRADE

Affected: <= 2.1.5

Fixed in: newer than 2.1.5

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-2022-35122?

gw1100 firmware: upgrade to newer than 2.1.5. Exact commands for each OS are on this page.

Is CVE-2022-35122 being exploited?

CVE-2022-35122 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-2022-35122 affect?

CVE-2022-35122 affects gw1100 firmware. Severity is critical (CVSS 9.1). An access control issue in Ecowitt GW1100 Series Weather Stations <=GW1100B_v2.1.5 allows unauthenticated attackers to access sensitive information including device and local WiFi passwords.

How urgent is CVE-2022-35122?

Priority 58/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Wi-Fi vulnerabilities

References

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