How severe is CVE-2021-39671?

CVE-2021-39671 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-39671 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-39671?

CVE-2021-39671 affects Google Android. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-39671?

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

When was CVE-2021-39671 published?

CVE-2021-39671 was published on 2022-02-11 and last updated on 2026-06-17.

CVE-2021-39671

CVE-2021-39671 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-908.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 0% (39th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-908
Affected product: Google Android
Published: 2022-02-11
Last modified: 2026-06-17

Description

In code generated by aidl_const_expressions.cpp, there is a possible out of bounds read due to uninitialized data. This could lead to information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-206718630

Frequently asked questions

What is CVE-2021-39671?: In code generated by aidl_const_expressions.cpp, there is a possible out of bounds read due to uninitialized data. This could lead to information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-206718630
How severe is CVE-2021-39671?: CVE-2021-39671 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-39671 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-39671?: CVE-2021-39671 affects Google Android. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-39671?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-39671 published?: CVE-2021-39671 was published on 2022-02-11 and last updated on 2026-06-17.

References

https://source.android.com/security/bulletin/2022-02-01

Affected products (1)

cpe:2.3:o:google:android:12.0:*:*:*:*:*:*:*

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