CVE-2021-1940
Use after free can occur due to improper handling of response from firmware in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer…
- Published
- Updated
- Reserved
- Assigned by
- qualcomm
Description
Use after free can occur due to improper handling of response from firmware in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables
Timeline
ID reserved
By qualcomm
- 7 months later
· 7 months later
Published
- 3 years later
· 3 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| qualcommCNA (assigner) | 3.1 | High8.4 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.18% · top 92% of all CVEs (7 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.4.
Weakness
- Use After Free in Neural Processing
- CWE-416 (opens in a new tab)All about CWE-416 and its CVEs
Affected products
Qualcomm, Inc. · Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables
- affected AQT1000, AR8031, AR8035, CSRA6620, CSRA6640, FSM10055, FSM10056, QCA6391, QCA6420, QCA6430, QCA6564, QCA6564A, QCA6564AU, QCA6574, QCA6574A, QCA6574AU, QCA6584AU, QCA6595AU, QCA6696, QCA8337, QCM6125, QCS405, QCS410, QCS610, QCS6125, SA415M, SA515M, SA6145P, SA6155, SA6155P, SA8155, SA8155P, SA8195P, SD 675, SD 8C, SD 8CX, SD660, SD665, SD675, SD678, SD720G, SD730, SD855, SDA429W, SDX50M, SDX55, SDX55M, SM6250, SM6250P, WCD9335, WCD9340, WCD9341, WCD9370, WCD9375, WCD9380, WCN3610, WCN3620, WCN3660B, WCN3950, WCN3980, WCN3988, WCN3990, WCN3991, WCN3998, WCN3999, WSA8810, WSA8815
References (2)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2021-1940)Record last updated .