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CVE-2020-0423

22
FAUCET Score

CVE-2020-0423 is a high-severity use-after-free vulnerability in the Android kernel's binder.c, specifically in the binder_release_work function, affecting Android and Debian Linux products. This flaw allows for local escalation of privilege without requiring user interaction or additional execution privileges. With a CVSS score of 7.8, it poses a significant risk due to its low attack complexity and high impact on confidentiality, integrity, and availability. While no public exploit code or active exploitation has been confirmed, it has garnered some community discussion, indicating awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:google:android:-:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

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
0.51%
Probability of exploitation in next 30 days
EPSS Percentile
40.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0051 is in the 80th percentile among its peer group of 17,070 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

No media coverage found for this CVE.

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

Remediation

Vendor Patches (1)

googlevendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2020-0423Important

kernel: use-after-free in binder_release_work of binder.c due to improper locking may lead to local escalation of privilege

Oct 14, 2020

References

lists.debian.org / debian-lts-announce/2020/12/msg00015.html
Mailing ListThird Party Advisory
source.android.com / security/bulletin/2020-10-01
Vendor Advisory