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HIGH · CVSS 7.8 CISA Known Exploited Vulnerability

CVE-2023-20963

Android Framework Privilege Escalation Vulnerability

Android Framework

In WorkSource, there is a possible parcel mismatch. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-220302519

CVSS
7.8
HIGH
EPSS
1.5%
30-day exploitation
Ransomware groups
0
recorded exploiting
Published
24 Mar 2023
CWE-295

Exploitation status

CISA Known Exploited Vulnerabilities

Listed by CISA on 13 April 2023. US federal agencies were required to remediate it by 4 May 2023.

EPSS — exploitation probability

FIRST puts the probability of exploitation activity in the next 30 days at 1.5%, which is higher than 73.9% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Frequently asked questions

Is CVE-2023-20963 being exploited by ransomware groups?

No ransomware group in this database is currently recorded as exploiting CVE-2023-20963.

What does CVE-2023-20963 affect?

CVE-2023-20963 affects Android Framework. In WorkSource, there is a possible parcel mismatch. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-220302519

How severe is CVE-2023-20963?

CVE-2023-20963 is rated HIGH with a CVSS base score of 7.8. EPSS puts the probability of exploitation in the next 30 days at 1.5%, higher than 73.9% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 4 May 2023.

How should organisations respond to CVE-2023-20963?

Apply the vendor patch for Android Framework as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.