CVE-2020-11227

Out of bound write while parsing RTT/TTY packet parsing due to lack of check of buffer size...

9.8 Critical

Out of bound write while parsing RTT/TTY packet parsing due to lack of check of buffer size before copying into buffer in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.91%Up 0.5 points since Apr 14, 2021

What each source reports

NVD Score used 9.8

Record: CVE-2020-11227
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness: CWE-129, CWE-787
Updated: 2026-11-02

CVE List No score

Record: CVE-2020-11227
Updated: 2026-11-02

EUVDEUVD-2020-3581 No score

Record: EUVD-2020-3581
Updated: 2026-11-03

GitHub AdvisoriesGHSA-92x8-x8pv-f97w No score

Out of bound write while parsing RTT/TTY packet parsing due to lack of check of buffer size...

Record: GHSA-92x8-x8pv-f97w
Weakness: CWE-129
Updated: 2026-11-02

Affected products

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History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-11227 is a critical vulnerability (CVSS 9.8) in Qualcomm, Inc. Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Iot, Snapdragon Industrial Iot, Snapdragon Iot, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, published March 17, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.91%, the 60th percentile. No source names a fixed version.