CVE-2021-1905
Qualcomm Multiple Chipsets Use-After-Free Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 3 May 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
Possible use after free due to improper handling of memory mapping of multiple processes simultaneously. in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.54% probability · 75th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Listed 3 November 2021 · due 3 May 2022
- Weakness
- CWE-416
- Affected
- qualcomm/apq8009 firmware · qualcomm/apq8009w firmware · qualcomm/apq8017 firmware · qualcomm/apq8053 firmware · qualcomm/apq8064au firmware · qualcomm/apq8096au firmware · qualcomm/aqt1000 firmware · qualcomm/ar8031 firmware · qualcomm/ar8035 firmware · qualcomm/ar8151 firmware · qualcomm/csra6620 firmware · qualcomm/csra6640 firmware · qualcomm/fsm10055 firmware · qualcomm/fsm10056 firmware · qualcomm/mdm9206 firmware · qualcomm/mdm9607 firmware · qualcomm/mdm9626 firmware · qualcomm/mdm9628 firmware · qualcomm/mdm9650 firmware · qualcomm/msm8909w firmware · +40 more
- Source
- product-security@qualcomm.com
EPSS 1.5% since 30 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2021-1905
References
- https://www.qualcomm.com/company/product-security/bulletins/may-2021-bulletinPatch, Vendor Advisory
- https://www.qualcomm.com/company/product-security/bulletins/may-2021-bulletinPatch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-1905US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.