Is CVE-2025-21039 in the CISA KEV catalog?

No. CVE-2025-21039 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-21039?

CVE-2025-21039 has a CVSS v3 base score of 5.1 (MEDIUM).

What is the EPSS score for CVE-2025-21039?

CVE-2025-21039 has an EPSS score of 0.10% (1th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-21039?

Upgrade sassistant to 9.3.2 or later.

CVE & CISA-KEV Catalog

CVE-2025-21039

MEDIUM

5.1

CVSS v3

NVD

Description

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

How to fix

Remediation Available

sassistantNVD

Affected:< 9.3.2Fixed in:9.3.2CVE-2025-21039derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityLow

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

Exploit Intelligence

0.10%probability of exploitation in 30 days

1stpercentile

Low risk: more likely to be exploited than 1% of all known CVEs.

References

Vendor Advisory1

security.samsungmobile.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-09-05.