HIGHCVSS v3.1 7.8Actively exploited · CISA KEV since 2021-11-03Vulnerability

CVE-2021-1905

Multiple Qualcomm Chipsets contain a use after free vulnerability due to improper handling of memory mapping of multiple processes simultaneously.

Properties

Euvd product
Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables
Vulnerability name
Qualcomm Multiple Chipsets Use-After-Free Vulnerability
First seen
2025-10-21T23:25:46+00:00
Cvss score
7.8
Epss score
0.01543
Last seen
2026-10-19T12:00:27+00:00
Due date
2022-05-03
Euvd assigner
qualcomm
Retrieved at
2026-10-21T01:24:47+00:00
Exploited euvd since
2021-11-03T00:00:00+00:00
Src batch id
epss_history-20261020T103617Z-728ddd
Source url
https://epss.empiricalsecurity.com/epss_scores-2026-10-19.csv.gz
Date added
2021-11-03
Score
7.8
Euvd base score version
3.1
Fetched at
2026-10-20T10:36:20+00:00
Euvd vendor
Qualcomm, Inc.
Cvss vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
In Signal since
initial import (Sep 2026)
Euvd base score
8.4

Related Entities (795 · showing 23)

AFFECTS_PRODUCT (792 · showing 20)

→[Product]cpe:2.3:o:qualcomm:pm4250_firmware:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:h:qualcomm:wtr4905:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:qualcomm:wtr6955_firmware:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:h:qualcomm:wtr6955:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:h:qualcomm:wtr5975:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:qualcomm:wtr4905_firmware:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:qualcomm:wtr5975_firmware:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:h:qualcomm:wtr3925:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:h:qualcomm:wcn3615:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:qualcomm:wtr2955_firmware:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:qualcomm:wcn3910_firmware:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:qualcomm:wcn3950_firmware:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:qualcomm:wsa8815_firmware:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:h:qualcomm:wcn6855:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:h:qualcomm:wcn3620:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:h:qualcomm:wcn6851:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:h:qualcomm:wtr2965:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:qualcomm:wcn6851_firmware:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:h:qualcomm:wcn3660b:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:qualcomm:wcn3988_firmware:-:*:*:*:*:*:*:*

DESCRIBES (1)

←[KEVEntry]Qualcomm Multiple Chipsets Use-After-Free Vulnerability

HAS_WEAKNESS (1)

→[Weakness]Use After Free

INVOLVES (1)

←[Signal]kev_added · 2021-11-03

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CVE-2021-1905 (CVSS v3.1 7.8) — Ninja Signal Threat Intelligence | Ninja Signal