VDB-126097 · CVE-2018-11873 · BID 107681

Qualcomm Snapdragon Mobile SD 845 WLAN input validation

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability was found in Qualcomm Snapdragon Mobile SD 845 (Chip Software). It has been declared as critical. Affected by this vulnerability is some unknown processing of the component WLAN. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Improper input validation leads to buffer overwrite in the WLAN function that handles WLAN roam buffer in Snapdragon Mobile in version SD 845.

The bug was discovered 11/01/2018. The weakness was disclosed 10/28/2018 (Website). The advisory is shared at qualcomm.com. This vulnerability is known as CVE-2018-11873 since 06/07/2018. The exploitation appears to be easy. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

Upgrading eliminates this vulnerability.

The entries 120497, 120506, 120507 and 120508 are pretty similar.






  • commercial

CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.7

VulDB Base Score: 5.9
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍



VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍


Class: Input validation
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Threat Intelligenceinfo

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


Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍


06/07/2018 🔍
10/28/2018 +144 days 🔍
10/29/2018 +0 days 🔍
10/30/2018 +1 days 🔍
11/01/2018 +2 days 🔍
06/03/2023 +1675 days 🔍


Vendor: qualcomm.com

Advisory: qualcomm.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-11873 (🔍)
SecurityFocus: 107681

See also: 🔍


Created: 10/30/2018 05:59 AM
Updated: 06/03/2023 01:10 PM
Changes: 10/30/2018 05:59 AM (58), 05/03/2020 08:36 PM (2), 06/03/2023 01:10 PM (4)
Complete: 🔍


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