CVE-2021-1905
Qualcomm Multiple Chipsets: Use-After-Free
As of , CVE-2021-1905 in Qualcomm Multiple Chipsets is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch soon.
- Exploited
- Yes: CISA listed it on 3 November 2021
- US federal deadline
- 3 May 2022181 days after CISA listed it. US federal civilian agencies must fix it by then.
- Used in ransomware campaigns
- Not known to CISA
- EPSS score
- 0.02Higher than 74% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
- EPSS when listed
- Not availableCISA listed it before 4 February 2022, where the EPSS files we read begin.
- Public exploit
- None foundNeither Metasploit nor Exploit-DB lists one.
- Fix
- No vendor link in CISA's entry
What CISA says to do
Apply updates per vendor instructions.
CISA's required action
What the flaw is
Multiple Qualcomm Chipsets contain a use after free vulnerability due to improper handling of memory mapping of multiple processes simultaneously.
CISA's 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
The CVE record's description, from qualcomm
- CVE published
- 7 May 2021
- Assigned by
- qualcomm
- CVSS
- 8.4 High (CVSS 3.1, from the CNA)
- CWE-416
- Use After Free
- CISA SSVC, exploitation
- active
- CISA SSVC, automatable
- no
- CISA SSVC, technical impact
- total
Timeline
- The CVE record was published.
- CISA added it to its list of exploited vulnerabilities.
- The US federal deadline to fix it.
Multiple Chipsets: other exploited entries
| Vulnerability | Product | Our group | Listed | Deadline | EPSS |
|---|---|---|---|---|---|
| CVE-2026-21385Memory Corruption | Qualcomm Multiple Chipsets | Patch soon | 0.01 | ||
| CVE-2025-27038Use-After-Free | Qualcomm Multiple Chipsets | Patch soon | 0.01 | ||
| CVE-2025-21479Incorrect Authorization | Qualcomm Multiple Chipsets | Patch soon | 0.01 | ||
| CVE-2023-33106Use of Out-of-Range Pointer Offset | Qualcomm Multiple Chipsets | Patch soon | 0.01 | ||
| CVE-2023-33107Integer Overflow | Qualcomm Multiple Chipsets | Patch soon | 0.01 | ||
| CVE-2024-43047Use-After-Free | Qualcomm Multiple Chipsets | Patch soon | 0.01 | ||
| CVE-2023-33063Use-After-Free | Qualcomm Multiple Chipsets | Patch soon | 0.01 | ||
| CVE-2021-1906Detection of Error Condition Without Action | Qualcomm Multiple Chipsets | Patch soon | 0.01 | ||
| CVE-2025-21480Incorrect Authorization | Qualcomm Multiple Chipsets | Patch soon | 0.00 | ||
| CVE-2022-22071Use-After-Free | Qualcomm Multiple Chipsets | Patch soon | 0.00 |
Read further
- CVE recordcve.org
- NVD entrynvd.nist.gov
- CISA's catalogcisa.gov
- EPSS for this CVEapi.first.org