CVE-2021-30271
Possible null pointer dereference in trap handler due to lack of thread ID validation before dereferencing it in Snapdragon Auto,…
- Published
- Updated
- Reserved
- Assigned by
- qualcomm
Description
Possible null pointer dereference in trap handler due to lack of thread ID validation before dereferencing it in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking
Timeline
ID reserved
By qualcomm
- 9 months later
· 9 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 | High7.3 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/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)
- 0.16% · top 95% of all CVEs (7 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.3.
Weakness
- NULL Pointer Dereference in Kernel
- CWE-476 (opens in a new tab)All about CWE-476 and its CVEs
Affected products
Qualcomm, Inc. · Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking
- affected APQ8009W, APQ8017, APQ8096AU, AR8031, AR8035, CSR8811, CSRA6620, CSRA6640, CSRB31024, FSM10055, FSM10056, IPQ5010, IPQ5018, IPQ5028, IPQ6010, IPQ6018, IPQ6028, IPQ8070A, IPQ8071A, IPQ8072A, IPQ8074A, IPQ8076, IPQ8076A, IPQ8078, IPQ8078A, IPQ8173, IPQ8174, MDM8207, MDM9150, MDM9205, MDM9206, MDM9207, MDM9250, MDM9607, MDM9628, MDM9635M, MDM9640, MDM9645, MDM9650, MDM9655, MSM8909W, MSM8996AU, QCA2062, QCA2064, QCA2065, QCA2066, QCA4004, QCA4024, QCA6174A, QCA6390, QCA6391, QCA6564, QCA6564A, QCA6564AU, QCA6574, QCA6574A, QCA6574AU, QCA6584, QCA6584AU, QCA6595AU, QCA6696, QCA8075, QCA8081, QCA8337, QCA9367, QCA9377, QCA9888, QCA9889, QCA9984, QCN5022, QCN5024, QCN5052, QCN5122, QCN5124, QCN5152, QCN5154, QCN5164, QCN6023, QCN6024, QCN6122, QCN6132, QCN7605, QCN7606, QCN9022, QCN9024, QCN9070, QCN9072, QCN9074, QCS405, QCS410, QCS603, QCS605, QCS610, QCX315, QSW8573, SA415M, SA515M, SA6145P, SA6150P, SA6155, SA6155P, SA8145P, SA8150P, SA8155, SA8155P, SA8195P, SC8280XP, SD 675, SD 8CX, SD205, SD2 ...[truncated*]
References (1)
- https://www.qualcomm.com/company/product-security/bulletins/december-2021-bulletin (opens in a new tab)x_refsource_CONFIRMx_transferred
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-2021-30271)Record last updated .