CVE-2021-3700
usbredir: use-after-free in usbredirparser_serialize() in usbredirparser/usbredirparser.c
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · August 8, 2021
Updated · November 22, 2025
Description
A use-after-free vulnerability was found in usbredir in the usbredirparser_serialize() function in usbredirparser/usbredirparser.c . This issue occurs when serializing large amounts of buffered write data in the case of a slow or blocked destination.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 3.9CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L
CWE-416 · Use After Free