SonicWall Capture Client/NetExtender Client SFPMonitor.sys out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in SonicWall Capture Client and NetExtender Client. This impacts an unknown function in the library SFPMonitor.sys. Executing a manipulation can lead to out-of-bounds write. This vulnerability appears as CVE-2023-6340. The attack requires local access. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in SonicWall Capture Client and NetExtender Client (Firewall Software) (affected version not known) and classified as critical. This vulnerability affects some unknown functionality in the library SFPMonitor.sys. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was presented 01/16/2024 as SNWLID-2023-6340. The advisory is available at psirt.global.sonicwall.com. This vulnerability was named CVE-2023-6340 since 11/27/2023. Technical details are known, but there is no available exploit.

Upgrading eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.7
VulDB Meta Temp Score: 6.5

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

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

11/27/2023 🔍
01/16/2024 +50 days 🔍
01/16/2024 +0 days 🔍
06/11/2025 +512 days 🔍

Sourcesinfo

Vendor: sonicwall.com

Advisory: SNWLID-2023-6340
Status: Confirmed

CVE: CVE-2023-6340 (🔍)
GCVE (CVE): GCVE-0-2023-6340
GCVE (VulDB): GCVE-100-250798

Entryinfo

Created: 01/16/2024 09:02
Updated: 06/11/2025 23:28
Changes: 01/16/2024 09:02 (39), 02/03/2024 20:09 (1), 02/03/2024 20:16 (11), 06/11/2025 23:28 (16)
Complete: 🔍
Cache ID: 216::103

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