CVE-2026-25933: Arduino App Lab is a cross-platform IDE for developing Arduino Apps

Q: How do I fix CVE-2026-25933?

app lab: upgrade to 0.4.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-25933 being exploited?

CVE-2026-25933 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-2026-25933 affect?

CVE-2026-25933 affects app lab. Severity is medium (CVSS 6.8). Arduino App Lab is a cross-platform IDE for developing Arduino Apps. Prior to 0.4.0, a vulnerability was identified in the Terminal component of the arduino-app-lab application. The issue stems from insufficient sanitization and validation

Q: How urgent is CVE-2026-25933?

Priority 26/100. No elevated risk signals yet.

Routine

MEDIUM 6.8UPGRADE

CVE-2026-25933 is a medium-severity flaw (CVSS 6.8) affecting app lab. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Arduino App Lab is a cross-platform IDE for developing Arduino Apps. Prior to 0.4.0, a vulnerability was identified in the Terminal component of the arduino-app-lab application. The issue stems from insufficient sanitization and validation of input data received from connected hardware devices, specifically in the _info.Serial and _info.Address metadata fields. The problem occurs during device information handling. When a board is connected, the

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.8 (Medium)
Attack vector	Physical
Attack complexity	High
Privileges needed	High
User interaction	Required
EPSS exploit chance	0.2% (top 92%)
CISA exploited list	No
Weakness	CWE-78
Published	2026-02-12
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: arduino

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

Am I affected?

Timeline

2026-02-12 20:16 UTCPublished CVE record published
2026-06-17 10:25 UTCUpdated Record last modified

arduino app lab UPGRADE

Affected: < 0.4.0

Fixed in: 0.4.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy app-lab || rpm -q app-lab || app-lab --version

2. UPGRADE to 0.4.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade app-lab

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade app-lab

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2026-25933?

app lab: upgrade to 0.4.0. Exact commands for each OS are on this page.

Is CVE-2026-25933 being exploited?

CVE-2026-25933 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-2026-25933 affect?

CVE-2026-25933 affects app lab. Severity is medium (CVSS 6.8). Arduino App Lab is a cross-platform IDE for developing Arduino Apps. Prior to 0.4.0, a vulnerability was identified in the Terminal component of the arduino-app-lab application. The issue stems from insufficient sanitization and validation

How urgent is CVE-2026-25933?

Priority 26/100. No elevated risk signals yet.

References

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