In btm_sec_disconnected of btm_sec.cc, there is a possible memory corruption due to a use after free.

published 2020-11-10 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-1950

cvss: 8.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.3%; EPSS 1.3% chance of exploitation in 30 days, percentile 71%
public exploits: 0; none known

In btm_sec_disconnected of btm_sec.cc, there is a possible memory corruption due to a use after free. This could lead to remote code execution in the Bluetooth server with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-9 Android-10 Android-11 Android-8.0 Android-8.1Android ID: A-162497143

Patch / fix

links 1

source.android.com/security/bulletin/2020-11-01 advisory

Exploit prediction

1.34% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	2.0	9.3	AV:N/AC:M/Au:N/C:C/I:C/A:C

Affected products

n/a Android

Classification

Weakness

CWE-416 Use After Free
CWE-787 Out-of-bounds Write

References

source.android.com /security/bulletin/2020-11-01
patch, vendor-advisory

Sources

CVE List CVE-2020-0449
NVD CVE-2020-0449

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary