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CVE-2023-20963

65
FAUCET Score

CVE-2023-20963 is a local escalation of privilege vulnerability in Android's WorkSource component, affecting Android versions 11 through 13. This flaw, stemming from a parcel mismatch (CWE-295), allows an attacker to gain elevated privileges without user interaction or additional execution permissions. Rated with a CVSS score of 7.8 (HIGH), it poses a significant risk due to its low attack complexity and high impact on confidentiality, integrity, and availability. The vulnerability is actively exploited in the wild, as confirmed by its presence in CISA's KEV catalog, and has garnered substantial media attention and community discussion, despite the lack of public exploit code on platforms like Metasploit or ExploitDB.

Impacted Technologies

VendorProductVersion(s)CPE
11.0CPE matchmatch criteria
cpe:2.3:o:google:android:11.0:*:*:*:*:*:*:*
12.0CPE matchmatch criteria
cpe:2.3:o:google:android:12.0:*:*:*:*:*:*:*
12.1CPE matchmatch criteria
cpe:2.3:o:google:android:12.1:*:*:*:*:*:*:*
13.0CPE matchmatch criteria
cpe:2.3:o:google:android:13.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.44%
Probability of exploitation in next 30 days
EPSS Percentile
70.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Added to KEV · Apr 13, 2023
This CVE's current EPSS score of 0.0144 is in the 95th percentile among its peer group of 17,061 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

googlepatch availablevia nvd_reference
View patch

References

cisa.gov / known-exploited-vulnerabilities-catalog
Third Party AdvisoryUS Government Resource
source.android.com / security/bulletin/2023-03-01
PatchVendor Advisory