CVE-2020-3703u'Buffer over-read issue in Bluetooth peripheral firmware due to lack of check for invalid opcode and length of opcode received from…
- 9.8CriticalCVSS base score
- 0.71%Exploitation in 30 daysEPSS · top 46% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
u'Buffer over-read issue in Bluetooth peripheral firmware due to lack of check for invalid opcode and length of opcode received from central device(This CVE is equivalent to Link Layer Length Overfow issue (CVE-2019-16336,CVE-2019-17519) and Silent Length Overflow issue(CVE-2019-17518) mentioned in sweyntooth paper)' in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music in APQ8053, APQ8076, AR9344, Bitra, Kamorta, MDM9206, MDM9207C, MDM9607, MSM8905, MSM8917, MSM8937, MSM8940, MSM8953, Nicobar, QCA6174A, QCA9377, QCM2150, QCM6125, QCS404, QCS405, QCS605, QCS610, QM215, Rennell, SC8180X, SDM429, SDM439, SDM450, SDM630, SDM632, SDM636, SDM660, SDM670, SDM710, SDM845, SDX20, SDX24, SM6150, SM7150, SM8150, SXR1130
Timeline
ID reserved
By qualcomm
- 11 months later
· 11 months later
Published
- 4 years later
· 4 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 |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.71% · top 46% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Affected products
Qualcomm, Inc. · Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music
- affected APQ8053, APQ8076, AR9344, Bitra, Kamorta, MDM9206, MDM9207C, MDM9607, MSM8905, MSM8917, MSM8937, MSM8940, MSM8953, Nicobar, QCA6174A, QCA9377, QCM2150, QCM6125, QCS404, QCS405, QCS605, QCS610, QM215, Rennell, SC8180X, SDM429, SDM439, SDM450, SDM630, SDM632, SDM636, SDM660, SDM670, SDM710, SDM845, SDX20, SDX24, SM6150, SM7150, SM8150, SXR1130
References
References1
- https://www.qualcomm.com/company/product-security/bulletins/october-2020-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)
- EUVD EUVD-2020-24974 (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://cveledger.app/cve/CVE-2020-3703)Record last updated .