CVE-2021-1965

Possible buffer overflow due to lack of parameter length check during MBSSID scan IE parse in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Mobile, Snapdragon Wired Infrastructure and Networking

Published: 2021-07-13 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-1965 is rated Moderate Risk (64.1/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 2.96%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2021-1965

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 27.45% 2.96% -24.49%
2 2025-11-21 30.26% 27.45% -2.81%
3 2025-11-18 — 30.26% —

Full EPSS history (17 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-1965

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 10.0 [email protected]

Weakness enumeration for CVE-2021-1965

Affected software / configurations for CVE-2021-1965

Vendor Product Version Raw CPE
qualcomm aqt1000_firmware — cpe:2.3:o:qualcomm:aqt1000_firmware:-:*:*:*:*:*:*:*
qualcomm ar9380_firmware — cpe:2.3:o:qualcomm:ar9380_firmware:-:*:*:*:*:*:*:*
qualcomm csr8811_firmware — cpe:2.3:o:qualcomm:csr8811_firmware:-:*:*:*:*:*:*:*
qualcomm ipq4018_firmware — cpe:2.3:o:qualcomm:ipq4018_firmware:-:*:*:*:*:*:*:*
qualcomm ipq4019_firmware — cpe:2.3:o:qualcomm:ipq4019_firmware:-:*:*:*:*:*:*:*
qualcomm ipq4028_firmware — cpe:2.3:o:qualcomm:ipq4028_firmware:-:*:*:*:*:*:*:*
qualcomm ipq4029_firmware — cpe:2.3:o:qualcomm:ipq4029_firmware:-:*:*:*:*:*:*:*
qualcomm ipq5010_firmware — cpe:2.3:o:qualcomm:ipq5010_firmware:-:*:*:*:*:*:*:*
qualcomm ipq5018_firmware — cpe:2.3:o:qualcomm:ipq5018_firmware:-:*:*:*:*:*:*:*
qualcomm ipq5028_firmware — cpe:2.3:o:qualcomm:ipq5028_firmware:-:*:*:*:*:*:*:*
qualcomm ipq6000_firmware — cpe:2.3:o:qualcomm:ipq6000_firmware:-:*:*:*:*:*:*:*
qualcomm ipq6005_firmware — cpe:2.3:o:qualcomm:ipq6005_firmware:-:*:*:*:*:*:*:*
qualcomm ipq6010_firmware — cpe:2.3:o:qualcomm:ipq6010_firmware:-:*:*:*:*:*:*:*
qualcomm ipq6018_firmware — cpe:2.3:o:qualcomm:ipq6018_firmware:-:*:*:*:*:*:*:*
qualcomm ipq6028_firmware — cpe:2.3:o:qualcomm:ipq6028_firmware:-:*:*:*:*:*:*:*
qualcomm ipq8064_firmware — cpe:2.3:o:qualcomm:ipq8064_firmware:-:*:*:*:*:*:*:*
qualcomm ipq8065_firmware — cpe:2.3:o:qualcomm:ipq8065_firmware:-:*:*:*:*:*:*:*
qualcomm ipq8068_firmware — cpe:2.3:o:qualcomm:ipq8068_firmware:-:*:*:*:*:*:*:*
qualcomm ipq8070_firmware — cpe:2.3:o:qualcomm:ipq8070_firmware:-:*:*:*:*:*:*:*
qualcomm ipq8070a_firmware — cpe:2.3:o:qualcomm:ipq8070a_firmware:-:*:*:*:*:*:*:*
qualcomm ipq8071a_firmware — cpe:2.3:o:qualcomm:ipq8071a_firmware:-:*:*:*:*:*:*:*
qualcomm ipq8072a_firmware — cpe:2.3:o:qualcomm:ipq8072a_firmware:-:*:*:*:*:*:*:*
qualcomm ipq8074a_firmware — cpe:2.3:o:qualcomm:ipq8074a_firmware:-:*:*:*:*:*:*:*
qualcomm ipq8076_firmware — cpe:2.3:o:qualcomm:ipq8076_firmware:-:*:*:*:*:*:*:*
qualcomm ipq8076a_firmware — cpe:2.3:o:qualcomm:ipq8076a_firmware:-:*:*:*:*:*:*:*
qualcomm ipq8078_firmware — cpe:2.3:o:qualcomm:ipq8078_firmware:-:*:*:*:*:*:*:*
qualcomm ipq8078a_firmware — cpe:2.3:o:qualcomm:ipq8078a_firmware:-:*:*:*:*:*:*:*
qualcomm ipq8173_firmware — cpe:2.3:o:qualcomm:ipq8173_firmware:-:*:*:*:*:*:*:*
qualcomm ipq8174_firmware — cpe:2.3:o:qualcomm:ipq8174_firmware:-:*:*:*:*:*:*:*
qualcomm pmp8074_firmware — cpe:2.3:o:qualcomm:pmp8074_firmware:-:*:*:*:*:*:*:*
qualcomm qca4024_firmware — cpe:2.3:o:qualcomm:qca4024_firmware:-:*:*:*:*:*:*:*
qualcomm qca6390_firmware — cpe:2.3:o:qualcomm:qca6390_firmware:-:*:*:*:*:*:*:*
qualcomm qca6391_firmware — cpe:2.3:o:qualcomm:qca6391_firmware:-:*:*:*:*:*:*:*
qualcomm qca6420_firmware — cpe:2.3:o:qualcomm:qca6420_firmware:-:*:*:*:*:*:*:*
qualcomm qca6426_firmware — cpe:2.3:o:qualcomm:qca6426_firmware:-:*:*:*:*:*:*:*
qualcomm qca6430_firmware — cpe:2.3:o:qualcomm:qca6430_firmware:-:*:*:*:*:*:*:*
qualcomm qca6436_firmware — cpe:2.3:o:qualcomm:qca6436_firmware:-:*:*:*:*:*:*:*
qualcomm qca6574a_firmware — cpe:2.3:o:qualcomm:qca6574a_firmware:-:*:*:*:*:*:*:*
qualcomm qca6574au_firmware — cpe:2.3:o:qualcomm:qca6574au_firmware:-:*:*:*:*:*:*:*
qualcomm qca6595au_firmware — cpe:2.3:o:qualcomm:qca6595au_firmware:-:*:*:*:*:*:*:*
qualcomm qca6696_firmware — cpe:2.3:o:qualcomm:qca6696_firmware:-:*:*:*:*:*:*:*
qualcomm qca7500_firmware — cpe:2.3:o:qualcomm:qca7500_firmware:-:*:*:*:*:*:*:*
qualcomm qca8072_firmware — cpe:2.3:o:qualcomm:qca8072_firmware:-:*:*:*:*:*:*:*
qualcomm qca8075_firmware — cpe:2.3:o:qualcomm:qca8075_firmware:-:*:*:*:*:*:*:*
qualcomm qca8081_firmware — cpe:2.3:o:qualcomm:qca8081_firmware:-:*:*:*:*:*:*:*
qualcomm qca9880_firmware — cpe:2.3:o:qualcomm:qca9880_firmware:-:*:*:*:*:*:*:*
qualcomm qca9886_firmware — cpe:2.3:o:qualcomm:qca9886_firmware:-:*:*:*:*:*:*:*
qualcomm qca9888_firmware — cpe:2.3:o:qualcomm:qca9888_firmware:-:*:*:*:*:*:*:*
qualcomm qca9889_firmware — cpe:2.3:o:qualcomm:qca9889_firmware:-:*:*:*:*:*:*:*
qualcomm qca9898_firmware — cpe:2.3:o:qualcomm:qca9898_firmware:-:*:*:*:*:*:*:*
qualcomm qca9980_firmware — cpe:2.3:o:qualcomm:qca9980_firmware:-:*:*:*:*:*:*:*
qualcomm qca9984_firmware — cpe:2.3:o:qualcomm:qca9984_firmware:-:*:*:*:*:*:*:*
qualcomm qca9985_firmware — cpe:2.3:o:qualcomm:qca9985_firmware:-:*:*:*:*:*:*:*
qualcomm qca9990_firmware — cpe:2.3:o:qualcomm:qca9990_firmware:-:*:*:*:*:*:*:*
qualcomm qca9992_firmware — cpe:2.3:o:qualcomm:qca9992_firmware:-:*:*:*:*:*:*:*
qualcomm qca9994_firmware — cpe:2.3:o:qualcomm:qca9994_firmware:-:*:*:*:*:*:*:*
qualcomm qcn5021_firmware — cpe:2.3:o:qualcomm:qcn5021_firmware:-:*:*:*:*:*:*:*
qualcomm qcn5022_firmware — cpe:2.3:o:qualcomm:qcn5022_firmware:-:*:*:*:*:*:*:*
qualcomm qcn5024_firmware — cpe:2.3:o:qualcomm:qcn5024_firmware:-:*:*:*:*:*:*:*
qualcomm qcn5052_firmware — cpe:2.3:o:qualcomm:qcn5052_firmware:-:*:*:*:*:*:*:*
qualcomm qcn5054_firmware — cpe:2.3:o:qualcomm:qcn5054_firmware:-:*:*:*:*:*:*:*
qualcomm qcn5121_firmware — cpe:2.3:o:qualcomm:qcn5121_firmware:-:*:*:*:*:*:*:*
qualcomm qcn5122_firmware — cpe:2.3:o:qualcomm:qcn5122_firmware:-:*:*:*:*:*:*:*
qualcomm qcn5124_firmware — cpe:2.3:o:qualcomm:qcn5124_firmware:-:*:*:*:*:*:*:*
qualcomm qcn5152_firmware — cpe:2.3:o:qualcomm:qcn5152_firmware:-:*:*:*:*:*:*:*
qualcomm qcn5154_firmware — cpe:2.3:o:qualcomm:qcn5154_firmware:-:*:*:*:*:*:*:*
qualcomm qcn5164_firmware — cpe:2.3:o:qualcomm:qcn5164_firmware:-:*:*:*:*:*:*:*
qualcomm qcn5550_firmware — cpe:2.3:o:qualcomm:qcn5550_firmware:-:*:*:*:*:*:*:*
qualcomm qcn6023_firmware — cpe:2.3:o:qualcomm:qcn6023_firmware:-:*:*:*:*:*:*:*
qualcomm qcn6024_firmware — cpe:2.3:o:qualcomm:qcn6024_firmware:-:*:*:*:*:*:*:*
qualcomm qcn6122_firmware — cpe:2.3:o:qualcomm:qcn6122_firmware:-:*:*:*:*:*:*:*
qualcomm qcn9000_firmware — cpe:2.3:o:qualcomm:qcn9000_firmware:-:*:*:*:*:*:*:*
qualcomm qcn9012_firmware — cpe:2.3:o:qualcomm:qcn9012_firmware:-:*:*:*:*:*:*:*
qualcomm qcn9022_firmware — cpe:2.3:o:qualcomm:qcn9022_firmware:-:*:*:*:*:*:*:*
qualcomm qcn9024_firmware — cpe:2.3:o:qualcomm:qcn9024_firmware:-:*:*:*:*:*:*:*
qualcomm qcn9070_firmware — cpe:2.3:o:qualcomm:qcn9070_firmware:-:*:*:*:*:*:*:*
qualcomm qcn9072_firmware — cpe:2.3:o:qualcomm:qcn9072_firmware:-:*:*:*:*:*:*:*
qualcomm qcn9074_firmware — cpe:2.3:o:qualcomm:qcn9074_firmware:-:*:*:*:*:*:*:*
qualcomm qcn9100_firmware — cpe:2.3:o:qualcomm:qcn9100_firmware:-:*:*:*:*:*:*:*
qualcomm sa6145p_firmware — cpe:2.3:o:qualcomm:sa6145p_firmware:-:*:*:*:*:*:*:*

References for CVE-2021-1965

cvelogic Threat Intelligence