How severe is CVE-2025-21039?

CVE-2025-21039 has a CVSS 3.x base score of 5.1, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.

Is CVE-2025-21039 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-2025-21039?

CVE-2025-21039 affects Samsung Sassistant. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-21039?

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

Does CVE-2025-21039 have an EU (EUVD) identifier?

Yes. CVE-2025-21039 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-26520.

When was CVE-2025-21039 published?

CVE-2025-21039 was published on 2025-09-03 and last updated on 2026-06-17.

CVE-2025-21039

CVE-2025-21039 is a medium-severity vulnerability in Samsung Sassistant with a CVSS 3.x base score of 5.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.1)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-26520
Affected product: Samsung Sassistant
Published: 2025-09-03
Last modified: 2026-06-17

Description

Improper verification of intent by SystemExceptionalBroadcastReceiver in S Assistant prior to version 9.3.2 allows local attackers to modify itinerary information.

Frequently asked questions

What is CVE-2025-21039?: Improper verification of intent by SystemExceptionalBroadcastReceiver in S Assistant prior to version 9.3.2 allows local attackers to modify itinerary information.
How severe is CVE-2025-21039?: CVE-2025-21039 has a CVSS 3.x base score of 5.1, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.
Is CVE-2025-21039 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-2025-21039?: CVE-2025-21039 affects Samsung Sassistant. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-21039?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-21039 have an EU (EUVD) identifier?: Yes. CVE-2025-21039 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-26520.
When was CVE-2025-21039 published?: CVE-2025-21039 was published on 2025-09-03 and last updated on 2026-06-17.

References

https://security.samsungmobile.com/serviceWeb.smsb?year=2025&month=09

Affected products (1)

cpe:2.3:a:samsung:sassistant:*:*:*:*:*:*:*:*

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