How severe is CVE-2026-21038?

CVE-2026-21038 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-21038 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-21038?

CVE-2026-21038 affects Samsung Android Usb Driver. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-21038?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-21038 have an EU (EUVD) identifier?

Yes. CVE-2026-21038 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-34810.

When was CVE-2026-21038 published?

CVE-2026-21038 was published on 2026-06-05 and last updated on 2026-06-30.

CVE-2026-21038

CVE-2026-21038 is a medium-severity vulnerability in Samsung Android Usb Driver with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v4: 5.9
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-34810
Weakness: CWE-125
Affected product: Samsung Android Usb Driver
Published: 2026-06-05
Last modified: 2026-06-30

Description

Improper input validation in Samsung Android USB Driver for Windows prior to version 1.9.5.0 allows local attacker to access out-of-bounds memory.

Frequently asked questions

What is CVE-2026-21038?: Improper input validation in Samsung Android USB Driver for Windows prior to version 1.9.5.0 allows local attacker to access out-of-bounds memory.
How severe is CVE-2026-21038?: CVE-2026-21038 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-21038 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-21038?: CVE-2026-21038 affects Samsung Android Usb Driver. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-21038?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-21038 have an EU (EUVD) identifier?: Yes. CVE-2026-21038 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-34810.
When was CVE-2026-21038 published?: CVE-2026-21038 was published on 2026-06-05 and last updated on 2026-06-30.

References

https://security.samsungmobile.com/serviceWeb.smsb?year=2026&month=06

Affected products (1)

cpe:2.3:a:samsung:android_usb_driver:*:*:*:*:*:windows:*:*

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