How severe is CVE-2023-21505?

CVE-2023-21505 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-2023-21505 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-21505?

CVE-2023-21505 affects Samsung Samsung Core Services. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-21505?

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

When was CVE-2023-21505 published?

CVE-2023-21505 was published on 2023-05-04 and last updated on 2026-06-17.

CVE-2023-21505

CVE-2023-21505 is a medium-severity vulnerability in Samsung Samsung Core Services 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-285.

Key facts

Severity: Medium (CVSS 3.x base score 4.0)
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-285
Affected product: Samsung Samsung Core Services
Published: 2023-05-04
Last modified: 2026-06-17

Description

Improper access control in Samsung Core Service prior to version 2.1.00.36 allows attacker to write arbitrary file in sandbox.

Frequently asked questions

What is CVE-2023-21505?: Improper access control in Samsung Core Service prior to version 2.1.00.36 allows attacker to write arbitrary file in sandbox.
How severe is CVE-2023-21505?: CVE-2023-21505 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-2023-21505 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-21505?: CVE-2023-21505 affects Samsung Samsung Core Services. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-21505?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-21505 published?: CVE-2023-21505 was published on 2023-05-04 and last updated on 2026-06-17.

References

https://security.samsungmobile.com/serviceWeb.smsb?year=2023&month=05

Affected products (1)

cpe:2.3:a:samsung:samsung_core_services:*:*:*:*:*:*:*:*

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