Qualcomm WSA8835 Multi-Mode Call Processor memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.6$5k-$25k0.00

Summaryinfo

A vulnerability has been found in Qualcomm AR8035, QCA6390, QCA6391, QCA6421, QCA6426, QCA6431, QCA6436, QCA6574A, QCA6574AU, QCA6595AU, QCA6696, QCA8081, QCA8337, QCM6490, QCN6024, QCN9024, QCS6490, QCX315, SA515M, SD 8 Gen1 5G, SD480, SD690 5G, SD695, SD750G, SD765, SD765G, SD768G, SD778G, SD780G, SD855, SD865 5G, SD870, SD888, SD888 5G, SDX55, SDX55M, SDX57M, SDX65, SDX70M, SDXR2 5G, SM7250P, SM7315, SM7325P, Snapdragon 4 Gen 1, WCD9341, WCD9360, WCD9370, WCD9375, WCD9380, WCD9385, WCN3988, WCN3991, WCN3998, WCN6740, WCN6750, WCN6850, WCN6851, WCN6855, WCN6856, WCN7850, WCN7851, WSA8810, WSA8815, WSA8830 and WSA8835 and classified as critical. Impacted is an unknown function of the component Multi-Mode Call Processor. This manipulation causes memory corruption. The identification of this vulnerability is CVE-2022-33256. It is possible to initiate the attack remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Qualcomm AR8035, QCA6390, QCA6391, QCA6421, QCA6426, QCA6431, QCA6436, QCA6574A, QCA6574AU, QCA6595AU, QCA6696, QCA8081, QCA8337, QCM6490, QCN6024, QCN9024, QCS6490, QCX315, SA515M, SD 8 Gen1 5G, SD480, SD690 5G, SD695, SD750G, SD765, SD765G, SD768G, SD778G, SD780G, SD855, SD865 5G, SD870, SD888, SD888 5G, SDX55, SDX55M, SDX57M, SDX65, SDX70M, SDXR2 5G, SM7250P, SM7315, SM7325P, Snapdragon 4 Gen 1, WCD9341, WCD9360, WCD9370, WCD9375, WCD9380, WCD9385, WCN3988, WCN3991, WCN3998, WCN6740, WCN6750, WCN6850, WCN6851, WCN6855, WCN6856, WCN7850, WCN7851, WSA8810, WSA8815, WSA8830 and WSA8835 (Chip Software) and classified as very critical. Affected by this vulnerability is an unknown part of the component Multi-Mode Call Processor. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Memory corruption due to improper validation of array index in Multi-mode call processor.

The weakness was shared 03/11/2023. It is possible to read the advisory at qualcomm.com. This vulnerability is known as CVE-2022-33256 since 06/14/2022. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 09/03/2025).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2023-0841). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Samsung Exynos
  • Samsung Android

Productinfo

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License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.6

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 9.8
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: Memory corruption
CWE: 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

06/14/2022 🔍
03/11/2023 +270 days 🔍
03/11/2023 +0 days 🔍
09/03/2025 +907 days 🔍

Sourcesinfo

Vendor: qualcomm.com

Advisory: qualcomm.com
Status: Confirmed

CVE: CVE-2022-33256 (🔍)
GCVE (CVE): GCVE-0-2022-33256
GCVE (VulDB): GCVE-100-222799
CERT Bund: WID-SEC-2023-0841 - Samsung Android und Samsung Exynos: Mehrere Schwachstellen

Entryinfo

Created: 03/11/2023 08:33
Updated: 09/03/2025 15:56
Changes: 03/11/2023 08:33 (49), 09/03/2025 15:56 (22)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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