01 Record
CVE-2021-1977
Possible buffer over read due to improper validation of frame length while processing AEAD decryption during ASSOC response in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon
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
02 Description
Possible buffer over read due to improper validation of frame length while processing AEAD decryption during ASSOC response in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon
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
- 0.61% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 49.0% of scored records. A rank, not a probability.
- NVD base score
- 9.1 (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:H/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
- 2021-10-20 06:31Z5 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
- CWE-125Out-of-bounds ReadBase
- Data version
- 5.1
- Document digest
- 74f1ed42cc3aea01138bc6e28b4a134fa417644364bce1310f21896a02f3437e
05 Affected products
VendorProductVersionsPlatforms
Qualcomm, Inc.Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & MusicAPQ8009, APQ8017, APQ8053, APQ8064AU, APQ8096AU, AR8031, AR8035, CSRA6620, CSRA6640, CSRB31024, MDM9150, MDM9206, MDM9250, MDM9607, MDM9626, MDM9628, MDM9650, MSM8953, MSM8996AU, QCA4020, QCA6174A, QCA6175A, QCA6310, QCA6320, QCA6335, QCA6390, QCA6391, QCA6426, QCA6436, QCA6564A, QCA6564AU, QCA6574, QCA6574A, QCA6574AU, QCA6584AU, QCA6595, QCA6595AU, QCA6696, QCA8337, QCA9367, QCA9377, QCA9379, QCM4290, QCM6125, QCS405, QCS410, QCS4290, QCS603, QCS605, QCS610, QCS6125, QRB5165, SA415M, SA515M, SA6145P, SA6150P, SA6155, SA6155P, SA8145P, SA8150P, SA8155, SA8155P, SA8195P, SD 675, SD460, SD660, SD662, SD665, SD675, SD678, SD690 5G, SD720G, SD750G, SD765, SD765G, SD768G, SD778G, SD780G, SD820, SD835, SD845, SD855, SD865 5G, SD870, SD888, SD888 5G, SDX12, SDX20, SDX20M, SDX55, SDX55M, SDXR1, SDXR2 5G, SM4125, SM6250, SM7250P, SM7315, SM7325P, WCD9326, WCD9330, WCD9335, WCD9340, WCD9341, WCD9370, WCD9375, WCD9380, WCD9385, WCN3610, WCN3615, WCN3660B, WCN3680B, WCN3910, WCN3950, WCN3980, WCN3988, WC ...[truncated*]—