How severe is CVE-2023-21424?

CVE-2023-21424 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-2023-21424 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-21424?

CVE-2023-21424 primarily affects Samsung Android. In total, 78 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-21424?

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

When was CVE-2023-21424 published?

CVE-2023-21424 was published on 2023-02-09 and last updated on 2026-06-17.

CVE-2023-21424

CVE-2023-21424 is a medium-severity vulnerability in Samsung Android 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. The underlying weakness is classified as CWE-863.

Key facts

Severity: Medium (CVSS 3.x base score 5.1)
EPSS exploit prediction: 0% (5th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-863
Affected product: Samsung Android
Published: 2023-02-09
Last modified: 2026-06-17

Description

Improper Handling of Insufficient Permissions or Privileges vulnerability in SemChameleonHelper prior to SMR Jan-2023 Release 1 allows attacker to modify network related values, network code, carrier id and operator brand.

Frequently asked questions

What is CVE-2023-21424?: Improper Handling of Insufficient Permissions or Privileges vulnerability in SemChameleonHelper prior to SMR Jan-2023 Release 1 allows attacker to modify network related values, network code, carrier id and operator brand.
How severe is CVE-2023-21424?: CVE-2023-21424 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-2023-21424 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-21424?: CVE-2023-21424 primarily affects Samsung Android. In total, 78 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-21424?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-21424 published?: CVE-2023-21424 was published on 2023-02-09 and last updated on 2026-06-17.

References

https://security.samsungmobile.com/securityUpdate.smsb?year=2023&month=01

Affected products (78)

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

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