Buffer overflow in SonicWall Capture Client
CVE-2023-6340
SonicWall Capture Client version 3.7.10, NetExtender client version 10.2.337 and earlier versions are installed with sfpmonitor.sys driver. The driver has been found to be vulnerable to Denial-of-Service (DoS) caused by Stack-based Buffer Overflow vulnerability.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.002 (10.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 10th percentile — 10.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- SonicWall Capture Client — versions 3.7.10 and earlier versions
- SonicWall Capture Client
- SonicWall Netextender — versions 10.2.337 and earlier versions
Weakness classification (CWE)
Public proof-of-concept exploits
References
- psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0019 (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2023-6340?
- CVE-2023-6340 is a medium-severity vulnerability in SonicWall Capture Client, classified under Stack-based Buffer Overflow. CVSS score: 5.5/10. Published 2024-01-18.
- How severe is CVE-2023-6340?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2023-6340 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.