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01 Record

CVE-2021-1974

Possible buffer over read due to lack of alignment between map or unmap length of IPA SMMU and WLAN SMMU in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT,

HighPUBLISHEDCNA: qualcomm
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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02 Description

Possible buffer over read due to lack of alignment between map or unmap length of IPA SMMU and WLAN SMMU in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT,

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.58% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 47.8% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-09-09 07:36Z5 YR AGO
Last updated
2024-08-03 16:25Z2 YR AGO
Reserved
2020-12-08
Assigning CNA
qualcomm
Record state
PUBLISHED
Severity
High (CVSS 7.5)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
Data version
5.1
Document digest
278fbf758e41fb0ec6d2b0dd828758a0e26a44ab22d008788a3e3871936da6a7

05 Affected products

VendorProductVersionsPlatforms
Qualcomm, Inc.Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables, Snapdragon Wired Infrastructure and NetworkingAQT1000, AR8035, AR9380, CSR8811, CSRB31024, FSM10055, FSM10056, IPQ4018, IPQ4019, IPQ4028, IPQ4029, IPQ5010, IPQ5018, IPQ6000, IPQ6010, IPQ6018, IPQ6028, IPQ8064, IPQ8065, IPQ8068, IPQ8070, IPQ8070A, IPQ8071, IPQ8071A, IPQ8072, IPQ8072A, IPQ8074, IPQ8074A, IPQ8076, IPQ8076A, IPQ8078, IPQ8078A, IPQ8173, IPQ8174, PMP8074, QCA4024, QCA6175A, QCA6390, QCA6391, QCA6420, QCA6426, QCA6428, QCA6430, QCA6436, QCA6438, QCA6564, QCA6564A, QCA6564AU, QCA6574, QCA6574A, QCA6574AU, QCA6584AU, QCA6595, QCA6595AU, QCA6696, QCA7500, QCA8072, QCA8075, QCA8081, QCA8337, QCA9531, QCA9558, QCA9561, QCA9563, QCA9880, QCA9882, QCA9886, QCA9887, QCA9888, QCA9889, QCA9896, QCA9898, QCA9980, QCA9984, QCA9985, QCA9990, QCA9992, QCA9994, QCM2290, QCM4290, QCM6125, QCN5021, QCN5022, QCN5024, QCN5052, QCN5054, QCN5064, QCN5122, QCN5124, QCN5152, QCN5154, QCN5164, QCN5550, QCN6023, QCN6024, QCN9000, QCN9012, QCN9022, QCN9024, QCN9070, QCN9072, QCN9074, QCN9100, QCS2290, QCS410, QCS4290, QCS605, QCS610, QCS6125, QRB5165, QS ...[truncated*]—

06 References