How severe is CVE-2025-21034?

CVE-2025-21034 has a CVSS 3.x base score of 4.0, 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 none.

Is CVE-2025-21034 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-21034?

CVE-2025-21034 primarily affects Samsung Android. In total, 103 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-21034?

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

Does CVE-2025-21034 have an EU (EUVD) identifier?

Yes. CVE-2025-21034 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-26513.

When was CVE-2025-21034 published?

CVE-2025-21034 was published on 2025-09-03 and last updated on 2026-06-17.

CVE-2025-21034

CVE-2025-21034 is a medium-severity vulnerability in Samsung Android with a CVSS 3.x base score of 4.0. 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: Medium (CVSS 3.x base score 4.0)
EPSS exploit prediction: 0% (3rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-26513
Weakness: CWE-787
Affected product: Samsung Android
Published: 2025-09-03
Last modified: 2026-06-17

Description

Out-of-bounds write in libsavsvc.so prior to SMR Sep-2025 Release 1 allows local attackers to potentially execute arbitrary code.

Frequently asked questions

What is CVE-2025-21034?: Out-of-bounds write in libsavsvc.so prior to SMR Sep-2025 Release 1 allows local attackers to potentially execute arbitrary code.
How severe is CVE-2025-21034?: CVE-2025-21034 has a CVSS 3.x base score of 4.0, 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 none.
Is CVE-2025-21034 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-21034?: CVE-2025-21034 primarily affects Samsung Android. In total, 103 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-21034?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-21034 have an EU (EUVD) identifier?: Yes. CVE-2025-21034 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-26513.
When was CVE-2025-21034 published?: CVE-2025-21034 was published on 2025-09-03 and last updated on 2026-06-17.

References

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

Affected products (103)

cpe:2.3:o:samsung:android:13.0:-:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-apr-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-apr-2023-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-apr-2024-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-apr-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-aug-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-aug-2023-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-aug-2024-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-aug-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-dec-2021-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-dec-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-dec-2023-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-dec-2024-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-feb-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-feb-2023-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-feb-2024-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-feb-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-jan-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-jan-2023-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-jan-2024-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-jan-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-jul-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-jul-2023-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-jul-2024-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-jul-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-jun-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-jun-2023-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-jun-2024-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-jun-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-mar-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-mar-2023-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-mar-2024-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-mar-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-may-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-may-2023-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-may-2024-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-may-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-nov-2021-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-nov-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:13.0:smr-nov-2023-r1:*:*:*:*:*:*

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