How severe is CVE-2021-39742?

CVE-2021-39742 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-39742 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-2021-39742?

CVE-2021-39742 affects Google Android. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-39742?

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

When was CVE-2021-39742 published?

CVE-2021-39742 was published on 2022-03-30 and last updated on 2026-06-17.

CVE-2021-39742

CVE-2021-39742 is a medium-severity vulnerability in Google Android with a CVSS 3.x base score of 5.5. 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-862.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.3
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-862
Affected product: Google Android
Published: 2022-03-30
Last modified: 2026-06-17

Description

In Voicemail, there is a possible way to retrieve a trackable identifier due to a missing permission check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-12LAndroid ID: A-186405602

Frequently asked questions

What is CVE-2021-39742?: In Voicemail, there is a possible way to retrieve a trackable identifier due to a missing permission check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-12LAndroid ID: A-186405602
How severe is CVE-2021-39742?: CVE-2021-39742 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-39742 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-2021-39742?: CVE-2021-39742 affects Google Android. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-39742?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-39742 published?: CVE-2021-39742 was published on 2022-03-30 and last updated on 2026-06-17.

References

https://source.android.com/security/bulletin/android-12l

Affected products (1)

cpe:2.3:o:google:android:12.1:*:*:*:*:*:*:*

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