CVE-2021-35085

Service interruption via unchecked WLAN management frame

Published Jun 14, 2022 · Updated Aug 4, 2024

Buffer over-read in Qualcomm Snapdragon WLAN firmware allows local users with low privileges to interrupt service during management-frame reception. The management-frame receive handler reads from a frame buffer without first confirming that the supplied length fits the buffer. Exploitation requires low-privileged local access and can disrupt availability, with no vendor-reported confidentiality or integrity impact.

CVSS severity5.5
Medium
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer over-read in Qualcomm Snapdragon WLAN firmware allows local users with low privileges to interrupt service during management-frame reception. The management-frame receive handler reads from a frame buffer without first confirming that the supplied length fits the buffer. Exploitation requires low-privileged local access and can disrupt availability, with no vendor-reported confidentiality or integrity impact.

The record

CVE
CVE-2021-35085
Published
Jun 14, 2022
Updated
Aug 4, 2024
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-125, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 14, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=AQT1000, AR8035, CSRB31024, QCA6175A, QCA6390, QCA6391, QCA6420, QCA6426, QCA6430, QCA6436, QCA6564AU, QCA6574, QCA6574A, QCA6574AU, QCA6595AU, QCA6696, QCA8081, QCA8337, QCM4290, QCS4290, SA415M, SA515M, SA6155P, SA8155P, SA8195P, SD 8 Gen1 5G, SD460, SD480, SD662, SD680, SD690 5G, SD695, SD750G, SD765, SD765G, SD768G, SD778G, SD780G, SD855, SD865 5G, SD870, SD888 5G, SDX55, SDX55M, SDX65, SDXR2 5G, SM7250P, SM7325P, WCD9341, WCD9360, WCD9370, WCD9375, WCD9380, WCD9385, WCN3950, WCN3988, WCN3991, WCN3998, WCN6740, WCN6750, WCN6850, WCN6851, WCN6855, WCN6856, WCN7850, WCN7851, WSA8810, WSA8815, WSA8830, WSA8835

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Qualcomm · Snapdragonversion=AQT1000, AR8035, CSRB31024, QCA6175A, QCA6390, QCA6391, QCA6420, QCA6426, QCA6430, QCA6436, QCA6564AU, QCA6574, QCA6574A, QCA6574AU, QCA6595AU, QCA6696, QCA8081, QCA8337, QCM4290, QCS4290, SA415M, SA515M, SA6155P, SA8155P, SA8195P, SD 8 Gen1 5G, SD460, SD480, SD662, SD680, SD690 5G, SD695, SD750G, SD765, SD765G, SD768G, SD778G, SD780G, SD855, SD865 5G, SD870, SD888 5G, SDX55, SDX55M, SDX65, SDXR2 5G, SM7250P, SM7325P, WCD9341, WCD9360, WCD9370, WCD9375, WCD9380, WCD9385, WCN3950, WCN3988, WCN3991, WCN3998, WCN6740, WCN6750, WCN6850, WCN6851, WCN6855, WCN6856, WCN7850, WCN7851, WSA8810, WSA8815, WSA8830, WSA8835

Published CVSS scores

7.1NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
5.5Qualcomm, Inc.CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
3.6NIST NVDAV:L/AC:L/Au:N/C:P/I:N/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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