Qualcomm WSA8835 WLAN buffer over-read

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Qualcomm CSR8811, IPQ8070A, IPQ8071A, IPQ8072A, IPQ8074A, IPQ8076, IPQ8076A, IPQ8078, IPQ8078A, IPQ8173, IPQ8174, IPQ9008, IPQ9574, QCA4024, QCA6390, QCA6391, QCA6421, QCA6426, QCA6431, QCA6436, QCA8081, QCA8082, QCA8084, QCA8085, QCA8386, QCA9888, QCA9889, QCN5024, QCN5124, QCN5154, QCN5164, QCN6023, QCN6024, QCN9000, QCN9024, QCN9070, QCN9072, QCN9074, QCN9274, SD460, SD480, SD662, SD680, SD695, SD865 5G, SD870, SDX55M, SDX65, SDX65M, SM4125, Snapdragon 4 Gen 1, SW5100, SW5100P, WCD9326, WCD9335, WCD9370, WCD9375, WCD9380, WCD9385, WCN3910, WCN3950, WCN3980, WCN3988, WCN3991, WCN3998, WCN6850, WCN6851, WSA8810, WSA8815, WSA8830 and WSA8835. This issue affects some unknown processing of the component WLAN. The manipulation leads to buffer over-read. This vulnerability is traded as CVE-2022-40535. It is possible to initiate the attack remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Qualcomm CSR8811, IPQ8070A, IPQ8071A, IPQ8072A, IPQ8074A, IPQ8076, IPQ8076A, IPQ8078, IPQ8078A, IPQ8173, IPQ8174, IPQ9008, IPQ9574, QCA4024, QCA6390, QCA6391, QCA6421, QCA6426, QCA6431, QCA6436, QCA8081, QCA8082, QCA8084, QCA8085, QCA8386, QCA9888, QCA9889, QCN5024, QCN5124, QCN5154, QCN5164, QCN6023, QCN6024, QCN9000, QCN9024, QCN9070, QCN9072, QCN9074, QCN9274, SD460, SD480, SD662, SD680, SD695, SD865 5G, SD870, SDX55M, SDX65, SDX65M, SM4125, Snapdragon 4 Gen 1, SW5100, SW5100P, WCD9326, WCD9335, WCD9370, WCD9375, WCD9380, WCD9385, WCN3910, WCN3950, WCN3980, WCN3988, WCN3991, WCN3998, WCN6850, WCN6851, WSA8810, WSA8815, WSA8830 and WSA8835 (Chip Software) and classified as critical. This issue affects some unknown processing of the component WLAN. The manipulation with an unknown input leads to a buffer over-read vulnerability. Using CWE to declare the problem leads to CWE-126. The product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer. Impacted is availability. The summary by CVE is:

Transient DOS due to buffer over-read in WLAN while sending a packet to device.

The weakness was shared 03/11/2023. The advisory is shared at qualcomm.com. The identification of this vulnerability is CVE-2022-40535 since 09/12/2022. Neither technical details nor an exploit are publicly available.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2023-0841). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Samsung Exynos
  • Samsung Android

Productinfo

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Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (Qualcomm, Inc.): 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer over-read
CWE: CWE-126 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/12/2022 🔍
03/11/2023 +180 days 🔍
03/11/2023 +0 days 🔍
09/03/2025 +907 days 🔍

Sourcesinfo

Vendor: qualcomm.com

Advisory: qualcomm.com
Status: Confirmed

CVE: CVE-2022-40535 (🔍)
GCVE (CVE): GCVE-0-2022-40535
GCVE (VulDB): GCVE-100-222809
CERT Bund: WID-SEC-2023-0841 - Samsung Android und Samsung Exynos: Mehrere Schwachstellen

Entryinfo

Created: 03/11/2023 08:38
Updated: 09/03/2025 21:08
Changes: 03/11/2023 08:38 (50), 09/03/2025 21:08 (22)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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