How severe is CVE-2023-21315?

CVE-2023-21315 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-21315 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-2023-21315?

CVE-2023-21315 affects Google Android. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-21315?

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

When was CVE-2023-21315 published?

CVE-2023-21315 was published on 2023-10-30 and last updated on 2026-06-17.

CVE-2023-21315

CVE-2023-21315 is a medium-severity vulnerability in Google Android with a CVSS 3.x base score of 6.5. 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-125.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (3rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Google Android
Published: 2023-10-30
Last modified: 2026-06-17

Description

In Bluetooth, there is a possible out of bounds read due to a heap buffer overflow. This could lead to remote (proximal/adjacent) information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.

Frequently asked questions

What is CVE-2023-21315?: In Bluetooth, there is a possible out of bounds read due to a heap buffer overflow. This could lead to remote (proximal/adjacent) information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.
How severe is CVE-2023-21315?: CVE-2023-21315 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-21315 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-2023-21315?: CVE-2023-21315 affects Google Android. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-21315?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-21315 published?: CVE-2023-21315 was published on 2023-10-30 and last updated on 2026-06-17.

References

https://source.android.com/docs/security/bulletin/android-14

Affected products (1)

cpe:2.3:o:google:android:*:*:*:*:*:*:*:*

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