CVE-2026-21083: Improper input validation in Smart Switch prior to version 3.7.72.6 allows adjacent attackers to access sensit

Q: How do I fix CVE-2026-21083?

smart switch: upgrade to 3.7.72.6. Exact commands for each OS are on this page.

Q: Is CVE-2026-21083 being exploited?

CVE-2026-21083 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-2026-21083 affect?

CVE-2026-21083 affects smart switch. Severity is medium (CVSS 6.5). Improper input validation in Smart Switch prior to version 3.7.72.6 allows adjacent attackers to access sensitive data.

Q: How urgent is CVE-2026-21083?

Priority 27/100. No elevated risk signals yet.

Routine

MEDIUM 6.5UPGRADE

CVE-2026-21083 is a medium-severity flaw (CVSS 6.5) affecting smart switch. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Improper input validation in Smart Switch prior to version 3.7.72.6 allows adjacent attackers to access sensitive data.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 84%)
CISA exploited list	No
Weakness	CWE-20
Published	2026-08-10
Last modified	2026-10-23

Publisher (CNA): Samsung Mobile · Vendor: samsung

Last updated 2026-10-23 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-08-10 09:17 UTCPublished CVE record published
2026-10-23 20:10 UTCUpdated Record last modified

samsung smart switch UPGRADE

Affected: < 3.7.72.6

Fixed in: 3.7.72.6

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy smart-switch || rpm -q smart-switch || smart-switch --version

2. UPGRADE to 3.7.72.6 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade smart-switch

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade smart-switch

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-2026-21083?

smart switch: upgrade to 3.7.72.6. Exact commands for each OS are on this page.

Is CVE-2026-21083 being exploited?

CVE-2026-21083 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-2026-21083 affect?

CVE-2026-21083 affects smart switch. Severity is medium (CVSS 6.5). Improper input validation in Smart Switch prior to version 3.7.72.6 allows adjacent attackers to access sensitive data.

How urgent is CVE-2026-21083?

Priority 27/100. No elevated risk signals yet.

Software pages

Samsung vulnerabilities

Related CVEs

CVE-2026-21078 MEDIUM 6.5 UPGRADE Insufficient verification of data authenticity in Smart Switch trouble scanning mode prior to version 3.7.72.6
CVE-2026-21080 MEDIUM 6.5 UPGRADE Cleartext storage of sensitive information in Smart Switch prior to version 3.7.72.6 allows adjacent attackers
CVE-2026-21079 MEDIUM 6.5 UPGRADE Missing encryption of sensitive data in Smart Switch prior to version 3.7.72.6 allows adjacent attackers to in

References

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