How severe is CVE-2023-21459?

CVE-2023-21459 has a CVSS 3.x base score of 5.0, rated medium severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2023-21459 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-21459?

CVE-2023-21459 primarily affects Samsung Android. In total, 49 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-21459?

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

When was CVE-2023-21459 published?

CVE-2023-21459 was published on 2023-03-16 and last updated on 2026-06-17.

CVE-2023-21459

CVE-2023-21459 is a medium-severity vulnerability in Samsung Android with a CVSS 3.x base score of 5.0. 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-416.

Key facts

Severity: Medium (CVSS 3.x base score 5.0)
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-416
Affected product: Samsung Android
Published: 2023-03-16
Last modified: 2026-06-17

Description

Use after free vulnerability in decon driver prior to SMR Mar-2023 Release 1 allows attackers to cause memory access fault.

Frequently asked questions

What is CVE-2023-21459?: Use after free vulnerability in decon driver prior to SMR Mar-2023 Release 1 allows attackers to cause memory access fault.
How severe is CVE-2023-21459?: CVE-2023-21459 has a CVSS 3.x base score of 5.0, rated medium severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2023-21459 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-21459?: CVE-2023-21459 primarily affects Samsung Android. In total, 49 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-21459?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-21459 published?: CVE-2023-21459 was published on 2023-03-16 and last updated on 2026-06-17.

References

https://security.samsungmobile.com/securityUpdate.smsb?year=2023&month=03

Affected products (49)

cpe:2.3:o:samsung:android:11.0:smr-apr-2021-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:11.0:smr-apr-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:11.0:smr-aug-2021-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:11.0:smr-aug-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:11.0:smr-dec-2020-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:11.0:smr-dec-2021-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:11.0:smr-dec-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:11.0:smr-feb-2021-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:11.0:smr-feb-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:11.0:smr-feb-2023-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:11.0:smr-jan-2021-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:11.0:smr-jan-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:11.0:smr-jan-2023-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:11.0:smr-jul-2021-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:11.0:smr-jul-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:11.0:smr-jun-2021-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:11.0:smr-jun-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:11.0:smr-mar-2021-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:11.0:smr-mar-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:11.0:smr-may-2021-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:11.0:smr-may-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:11.0:smr-nov-2021-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:11.0:smr-nov-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:11.0:smr-oct-2021-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:11.0:smr-oct-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:11.0:smr-sep-2021-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:11.0:smr-sep-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:12.0:smr-apr-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:12.0:smr-aug-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:12.0:smr-dec-2021-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:12.0:smr-dec-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:12.0:smr-feb-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:12.0:smr-feb-2023-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:12.0:smr-jan-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:12.0:smr-jan-2023-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:12.0:smr-jul-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:12.0:smr-jun-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:12.0:smr-mar-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:12.0:smr-may-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:12.0:smr-nov-2021-r1:*:*:*:*:*:*

More vulnerabilities in Samsung Android

CVE-2023-21456 — Critical (CVSS 9.0): Path traversal vulnerability in Galaxy Themes Service prior to SMR Mar-2023 Release 1 allows attacker to access…
CVE-2025-21043 — High (CVSS 8.8): Out-of-bounds write in libimagecodec.quram.so prior to SMR Sep-2025 Release 1 allows remote attackers to execute…
CVE-2025-21042 — High (CVSS 8.8): Out-of-bounds write in libimagecodec.quram.so prior to SMR Apr-2025 Release 1 allows remote attackers to execute…
CVE-2025-20936 — High (CVSS 8.8): Improper access control in HDCP trustlet prior to SMR Apr-2025 Release 1 allows local attackers with shell privilege to…
CVE-2023-21480 — High (CVSS 8.5): Improper input validation vulnerability in CertByte prior to SMR Apr-2023 Release 1 allows local attackers to launch…
CVE-2023-30692 — High (CVSS 8.5): Improper input validation vulnerability in Evaluator prior to SMR Oct-2023 Release 1 allows local attackers to launch…

All CVEs affecting Samsung Android →

Other CWE-416 (Use After Free) vulnerabilities

CVE-2026-13782 — Critical (CVSS 10.0): Use after free in Browser in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised the…
CVE-2026-4725 — Critical (CVSS 10.0): Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149…
CVE-2026-4688 — Critical (CVSS 10.0): Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox…
CVE-2025-24085 — Critical (CVSS 10.0): A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.3 and iPadOS 18.3,…
CVE-2024-43102 — Critical (CVSS 10.0): Concurrent removals of certain anonymous shared memory mappings by using the UMTX_SHM_DESTROY sub-request of…
CVE-2021-32495 — Critical (CVSS 10.0): Radare2 has a use-after-free vulnerability in pyc parser's get_none_object function. Attacker can read freed memory…

Browse all CWE-416 (Use After Free) vulnerabilities →