How severe is CVE-2020-0478?

CVE-2020-0478 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-0478 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-0478?

CVE-2020-0478 affects Google Android. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-0478?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-0478 published?

CVE-2020-0478 was published on 2020-12-15 and last updated on 2026-06-17.

CVE-2020-0478

CVE-2020-0478 is a high-severity vulnerability in Google Android with a CVSS 3.x base score of 7.8. 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-787.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Google Android
Published: 2020-12-15
Last modified: 2026-06-17

Description

In extend_frame_lowbd of restoration.c, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-150780418

Frequently asked questions

What is CVE-2020-0478?: In extend_frame_lowbd of restoration.c, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-150780418
How severe is CVE-2020-0478?: CVE-2020-0478 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-0478 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-0478?: CVE-2020-0478 affects Google Android. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-0478?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-0478 published?: CVE-2020-0478 was published on 2020-12-15 and last updated on 2026-06-17.

References

https://source.android.com/security/bulletin/pixel/2020-12-01

Affected products (1)

cpe:2.3:o:google:android:11.0:*:*:*:*:*:*:*

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