How severe is CVE-2026-20998?

CVE-2026-20998 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-20998 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-20998?

CVE-2026-20998 affects Samsung Smart Switch. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-20998?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-20998 have an EU (EUVD) identifier?

Yes. CVE-2026-20998 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12313.

When was CVE-2026-20998 published?

CVE-2026-20998 was published on 2026-03-16 and last updated on 2026-06-17.

CVE-2026-20998

CVE-2026-20998 is a critical-severity vulnerability in Samsung Smart Switch with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 7.1
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-12313
Affected product: Samsung Smart Switch
Published: 2026-03-16
Last modified: 2026-06-17

Description

Improper authentication in Smart Switch prior to version 3.7.69.15 allows remote attackers to bypass authentication.

Frequently asked questions

What is CVE-2026-20998?: Improper authentication in Smart Switch prior to version 3.7.69.15 allows remote attackers to bypass authentication.
How severe is CVE-2026-20998?: CVE-2026-20998 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-20998 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-20998?: CVE-2026-20998 affects Samsung Smart Switch. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-20998?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-20998 have an EU (EUVD) identifier?: Yes. CVE-2026-20998 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12313.
When was CVE-2026-20998 published?: CVE-2026-20998 was published on 2026-03-16 and last updated on 2026-06-17.

References

https://security.samsungmobile.com/serviceWeb.smsb?year=2026&month=03

Affected products (1)

cpe:2.3:a:samsung:smart_switch:*:*:*:*:*:*:*:*

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