How severe is CVE-2025-21006?

CVE-2025-21006 has a CVSS 3.x base score of 7.0, rated high severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-21006 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-21006?

CVE-2025-21006 affects Samsung Android. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-21006?

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

Does CVE-2025-21006 have an EU (EUVD) identifier?

Yes. CVE-2025-21006 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-20439.

When was CVE-2025-21006 published?

CVE-2025-21006 was published on 2025-07-08 and last updated on 2026-06-17.

CVE-2025-21006

CVE-2025-21006 is a high-severity vulnerability in Samsung Android with a CVSS 3.x base score of 7.0. 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-787.

Key facts

Severity: High (CVSS 3.x base score 7.0)
EPSS exploit prediction: 0% (2nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-20439
Weakness: CWE-787
Affected product: Samsung Android
Published: 2025-07-08
Last modified: 2026-06-17

Description

Out-of-bounds write in handling of macro blocks for MPEG4 codec in libsavsvc.so prior to Android 15 allows local attackers to write out-of-bounds memory.

Frequently asked questions

What is CVE-2025-21006?: Out-of-bounds write in handling of macro blocks for MPEG4 codec in libsavsvc.so prior to Android 15 allows local attackers to write out-of-bounds memory.
How severe is CVE-2025-21006?: CVE-2025-21006 has a CVSS 3.x base score of 7.0, rated high severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-21006 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-21006?: CVE-2025-21006 affects Samsung Android. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-21006?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-21006 have an EU (EUVD) identifier?: Yes. CVE-2025-21006 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-20439.
When was CVE-2025-21006 published?: CVE-2025-21006 was published on 2025-07-08 and last updated on 2026-06-17.

References

https://security.samsungmobile.com/serviceWeb.smsb?year=2025&month=07

Affected products (1)

cpe:2.3:o:samsung:android:*:-:*:*:*:*:*:*

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