CVE-2025-32889: An issue was discovered on goTenna v1 devices with app 5.5.3 and firmware 0.25.5

Routine

HIGH 7.3MITIGATEDOWNGRADE

CVE-2025-32889 is a high-severity flaw (CVSS 7.3) affecting mesh firmware, gotenna. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered on goTenna v1 devices with app 5.5.3 and firmware 0.25.5. The verification token used for sending SMS through a goTenna server is hardcoded in the app.

Why this priority

High severity

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

Risk facts

CVSS score	7.3 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.2% (top 91%)
CISA exploited list	No
Weakness	CWE-798
Published	2025-05-01
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: gotenna

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

Am I affected?

Timeline

2025-05-01 18:15 UTCPublished CVE record published
2026-06-17 09:12 UTCUpdated Record last modified

gotenna mesh firmware MITIGATE

Affected: 0.25.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.25.5

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.

gotenna gotenna DOWNGRADE

Affected: 5.5.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.5.3

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 5.5.3 (Debian / Ubuntu)

apt-cache madison gotenna sudo apt install gotenna=<VERSION_BEFORE_5.5.3> sudo apt-mark hold gotenna

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

dnf --showduplicates list gotenna sudo dnf downgrade gotenna-<VERSION_BEFORE_5.5.3> sudo dnf versionlock add gotenna

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-2025-32889?

mesh firmware: mitigate or apply the listed mitigation; gotenna: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-32889 being exploited?

CVE-2025-32889 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-2025-32889 affect?

CVE-2025-32889 affects mesh firmware, gotenna. Severity is high (CVSS 7.3). An issue was discovered on goTenna v1 devices with app 5.5.3 and firmware 0.25.5. The verification token used for sending SMS through a goTenna server is hardcoded in the app.

How urgent is CVE-2025-32889?

Priority 28/100. High severity

Related CVEs

CVE-2025-32890 MEDIUM 5.3 MITIGATE DOWNGRADE An issue was discovered on goTenna Mesh devices with app 5.5.3 and firmware 1.1.12
CVE-2025-32888 HIGH 7.3 MITIGATE DOWNGRADE An issue was discovered on goTenna Mesh devices with app 5.5.3 and firmware 1.1.12
CVE-2025-32887 HIGH 7.1 MITIGATE DOWNGRADE An issue was discovered on goTenna v1 devices with app 5.5.3 and firmware 0.25.5
CVE-2025-32886 MEDIUM 4.0 MITIGATE DOWNGRADE An issue was discovered on goTenna v1 devices with app 5.5.3 and firmware 0.25.5
CVE-2025-32885 MEDIUM 6.5 MITIGATE DOWNGRADE An issue was discovered on goTenna v1 devices with app 5.5.3 and firmware 0.25.5

References

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