CVE-2021-1955

Denial of service in SAP case due to improper handling of connections when association is...

7.5 HighFix available

Denial of service in SAP case due to improper handling of connections when association is rejected in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics 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: None
Integrity: None
Availability: High

Exploit likelihood

0.59%Up 0.1 points since Jul 13, 2021

What each source reports

CVE List Score used 7.5

Record: CVE-2021-1955
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

EUVDEUVD-2021-7419 7.5

Record: EUVD-2021-7419
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-03

GitHub AdvisoriesGHSA-2726-mprm-wgq9 No score

Denial of service in SAP case due to improper handling of connections when association is...

Record: GHSA-2726-mprm-wgq9
Weakness: CWE-617
Updated: 2026-11-02

NVD 7.5

Record: CVE-2021-1955
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness: CWE-617
Updated: 2026-11-02

Affected products

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Affected packages

Affected packages
Package	Affected	Fixed
`platform/vendor/qcom-opensource/wlan/qcacld-2.0` Android	SoCVersion:0 up to SoCVersion:2021-07-05, plus listed versions SoCVersion	SoCVersion:2021-07-05
`platform/vendor/qcom-opensource/wlan/qcacld-3.0` Android	SoCVersion:0 up to SoCVersion:2021-07-05, plus listed versions SoCVersion	SoCVersion:2021-07-05

History

History
Recorded	Changed	Sources
Nov 5, 2026	facts	OSV
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

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

In short

CVE-2021-1955 is a high vulnerability (CVSS 7.5) in Qualcomm, Inc. Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer Iot, Snapdragon Industrial Iot, Snapdragon Iot, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, published July 1, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.59%, the 48th percentile. Fixed in platform/vendor/qcom-opensource/wlan/qcacld-2.0 SoCVersion:2021-07-05.